GOOOOOOOOAL

goooal.js

function oo(n) {
  return Object.defineProperties({}, {
    al: { get: () => 'go' + [...Array(n + 1)].join('o') + 'al' },
    o:  { get: () => oo(n + 1) }
  });
}

var go = oo(0);

console.log(go.al);               //=> goal
console.log(go.o.o.o.o.o.o.o.al); //=> gooooooooal



function g() {
  function al(n) {
    var r = () => al(n + 1);
    r.al = 'go' + [...Array(n + 1)].join('o') + 'al';
    return r;
  }
  return al(0);
}

console.log(g().al);         //=> goal
console.log(g()()()()().al); //=> goooooal