Lollable

lollable.js

var Callable, c,
  __slice = [].slice;

Callable = function(invoke) {
  var fn;
  fn = function() {
    var _ref;
    return (_ref = fn.invoke).call.apply(_ref, [this].concat(__slice.call(arguments)));
  };
  fn.invoke = invoke;
  return fn;
};

c = Callable(function() {
  return alert("hello");
});

c();

c.invoke = function() {
  return alert("goodbye");
};

c();