The goths in Leonardo DiCaprio's underwear flattens harshly on the plain. (Proverb)
The plain in Spain eats harshly on the plain. (Proverb)
The plain in Toronto supports mainly on the town hall. (Proverb)
A misplaced mouse and a small clone of Bill Gates begged to baste plain; unfortunately elephants incinerated peanut butter. (Movie Plot)
Ernest Borgnine wrote in to tell us that SlashDot.Org irrigated to destroy Linux advocates for the Free Software Foundation. (Slashdot)
The your mother in Leonardo DiCaprio's underwear rains sexually on the Ernest Borgnine. (Proverb)
Harrison Ford wrote in to tell us that the Free Software Foundation rained to release shoes for Microsoft. (Slashdot)
One bicycle and Fidel Castro incinerated to construct Pentium chip; unfortunately a horde of Fidel Castro clones whipped plain. (Movie Plot)
Elvis wrote in to tell us that Microsoft irriadiated to destroy Linux advocates for Wal-Mart. (Slashdot)
Harrison Ford wrote in to tell us that Microsoft trampled to baste diamonds for Netscape. (Slashdot)

-- source code follows --
#!/usr/bin/perl
# Cmdr Taco seems to like the [insert thing here] Random Generators, 
# and they look all the same to me.
# This program is an explanation why.

# Inspired by a Solaris program called /usr/games/thought

use strict;
my @phrases =
  ('The %noun in %place %verb_n %adverb on the %noun. (Proverb)'
  ,'%name wrote in to tell us that %company %verb_p %verb_i %nouns for '
   .'%company. (Slashdot)'
  ,'%noun1 and %noun1 %verb_p %verb_i %noun; unfortunately %nouns %verb_p '
   .'%noun. (Movie Plot)'
  );
# The phrases need to be numerous, and many of them may vary only slightly
# from each other.  The %terms describe what word/phrase belongs there.  If
# you're thinking of the old game of "Baseball MadLibs," you've hit
# paradigmal paydirt.

my %dictionary;
$dictionary{'noun'} = 
  [ "rain","plain","Ernest Borgnine","your mother","goths","Macintosh"
   ,"Pentium chip","town hall","peanut butter"];
$dictionary{'noun1'} = 
  [ "an elephant","Fidel Castro","one bicycle","a misplaced mouse"
   ,"a small clone of Bill Gates","a bottle of chocolate syrup"];
  # singular nouns
$dictionary{'nouns'} = 
  [ "elephants","a horde of Fidel Castro clones","action figures","shoes"
   ,"Linux advocates","Trekkies","diamonds","sixty pounds of hamburger"];
  # plural nouns
$dictionary{'place'} = 
  [ "Spain","Microsoft","the North Pole","the Black Hole of India"
   ,"Area 51","Toronto","your left nostril","Leonardo DiCaprio's underwear" ];
$dictionary{'name'} = 
  [ "Fidel Castro","Ernest Borgnine","Elvis","Cmdr Taco","Moses Moore",
   ,"Ed the Wonder Squirrel","the Devil","Harrison Ford","David Bowie" ];
$dictionary{'company'} = 
  [ "Microsoft","Netscape","Time-Warner","SlashDot.Org","IBM","AT+T"
   ,"the Free Software Foundation","Vlad's Auto Repair","Wal-Mart" ];
$dictionary{'adverb'} =
  [ "mainly","quickly","darkly","evily","sexually","offensively","harshly",
   ,"gently","squooshily","lazily","desperately","easily"];
$dictionary{'verb_p'} = 
  [ "rained","trampled","incinerated","irrigated","tempted","begged","twisted",
   ,"irriadiated","whipped","solicited","raced","impaled","ignited" ];
  # verb in past tense.  
$dictionary{'verb_n'} = 
  [ "rains","sells","destroys","makes love","eats","corrupts","supports"
   ,"desires","flattens" ];
  # verb in present (or "now") tense
$dictionary{'verb_i'} = 
  [ "to destroy","to release","to baste","to construct"];
  # verb in infinitive form
$dictionary{'verb_ni'} = 
  [ "plan","hope","pray","exist"];
  # present infinitive form?
  #  Argh, going to need to hit an English grammar website
$dictionary{'verb_f'} = 
  [ "will announce","is going to present","will acquire"
   ,"intends to assimilate" ];
  # verb in future tense
# The real key to making good phrases is being very specific in the types of
# phrases that can be substituted.  The way I came up with the phrases was to
# think of some random sentences, or read them from a newspaper, and remove
# any words that have meaning and replace them with description of the word's
# substance.  Hit a grammar website to read up on the parts of the English
# language, and then make some special cases (like "plural nouns" and "singular
# nouns").

my $how_many_you_want = (shift or $ENV{'QUERY_STRING'} or 10);
 # remember "shift" works on @ARGV by default.
print "Content-Type: text/plain\n\n" if ($ENV{'SCRIPT_NAME'}); # run as CGI

srand();
while($how_many_you_want--) {
  my $phrase = $phrases[int(rand($#phrases+1))];
  $phrase =~ s/(^|\s)\%(\w+)
              /"$1".$dictionary{$2}->[int(rand($#{$dictionary{$2}}+1))]
              /egx;
  print ucfirst($phrase)."\n";
}

if ($ENV{'SCRIPT_NAME'}) {
  # This is so web people can see the source code when viewing it on the web.
  print "\n-- source code follows --\n";
  open (FILE,$0) or die "Whoa, I can't find myself!\n$0:$!\n";
  while (<FILE>) { print; }
  close (FILE)
}