test.rb

require 'wordlist'

# Get evil idea and swap in code words
print "Enter your new idea: "
idea = gets
Decoder::CodeWords.each do |real, code|
  idea.gsub!( real, code )
end

# Save the jibberish to a new file
print "File encoded.  Please enter a name for this idea: "
idea_name = gets.strip
File::open( "idea-" + idea_name + ".txt", "w" ) do |f|
  f << idea
end

sleep 30

wordlist.rb

module Decoder
  CodeWords = {
    'starmonkeys' => 'Phil and Pete, those prickly chancellors of the New Reich',
    'catapult' => 'chucky go-go', 'firebomb' => 'Heat-Assisted Living',
    'Nigeria' => "Ny and Jerry's Dry Cleaning (with Donuts)",
    'Put the kabosh on' => 'Put the cable box on'
  }
end