ruby.rb

class Person
  attr_reader :name
  
  def initialize(name = nil)
    @name = name
  end
  
  def loud_name
    @name.upcase
  end
end

module Yeller
  def yell(text)
    puts "#{@name} says #{text.upcase}!"
  end
end

class Person
  include Yeller
end

module Queryer
  def ask(text)
    puts "#{@name} asks #{text.upcase}?"
  end
end

class Person
  include Queryer

  def ask(text)
    text = text.transliterate
    super
  end
end

module Meta
  def add_method(name)
    define_method(name) do
      puts "Inside #{name.to_s.upcase}!"
    end
  end
end

class Person
  extend Meta
  
  add_method :yourmom
end

Person.new.yourmom