gistfile1.rbx

# irb(main):001:0> h = {}
# => {}
# irb(main):002:0> h.foo = "bar"
# => "bar"
# irb(main):003:0> h.foo
# => "bar"

class Hash
  def method_missing(method, *params)
    method_string = method.to_s
    if method_string =~ /=$/
      self[method_string[0..-2]] = params.first
    else
      self[method_string]
    end
  end
end