$elm.egg( function() {
    $( this ).doStuff // $( this ) refers to $elm
});

// ... alternative use
$.egg( function() {
    doStuff();
});

// ... optionnal parameters
$.egg({
    trace : true,       // allow to trace your own keyCode (dev only)
    delay : 2000,       // default 1000 => time allowed between each keyPress
    keyCodes : [..]     // your own keyCodes sequence
}, function() {
    doStuff();
});