gistfile1.rb

#!/usr/bin/ruby

module Kernel
  def method_missing(sym, *args, &block)
    s = sym.to_s
    if s.length > 2 && s[0,2] == 'jt'
      real_name = s[2..-1]
      send(real_name.to_sym, *args, &block)
    end
  end
end

jtputs "yo:yo".jtsplit(':').jtjoin('-')