removing_a_method.rb

class CutItUp
  def singleton_class
    class <<self; self; end
  end
  
  def lol
    puts "LOL"
  end

  def delete_method(method)
    new_guy = self.dup
    new_guy.singleton_class.send(:undef_method, method)
    new_guy
  end
end

c = CutItUp.new
c.delete_method(:lol)