gistfile1.rb

class Methodize
  def initialize
  end
  
  def spitter=(lam)
    @spitter = lam
  end
  
  def spit!
    @spitter.call("bob")
  end
end

def say_hi(arg)
  puts "hello #{arg}"
end

m = Methodize.new
m.spitter = lambda{|arg| say_hi(arg)}
m.spit!