crazy.js

var _ = [];

var letters = "abcdefghijklmnopqrstuvwxyz".split('');

letters.forEach(function(letter) {
    function f() {
        var out = _.join('');
        _.length = 0;
        return out;
    }

    f.toString = function() {
        return _.push(letter), letter;
    };

    window[letter] = f;
});

letters.forEach(function(letter) {
    letters.forEach(function(_letter) {
        window[letter][_letter] = window[_letter];
    });

    _[letter] = window[letter];
});


var output =
    _
    [j]
    [a]
    [v]
    [a]
    [s]
    [c]
    [r]
    [i]
    [p]
    [t]
    () + ' ' + _[i][s]() + ' ' +
                               _
                              [c]
                              [r]
                              [a]
                              [z]
                              [y]
                              ();

alert(output);

http://jsbin.com/vapuja/1/edit