without fail, every time

Isaac has picked up a new phrase, and I can't help but crack a smile every time he says it.  The phrase? It's on like Donkey Kong!  He says it when he sits down to a meal he loves ("Ooohh, it's on like donkey kong!"), when he gets to add a sticker to his reward chart ("it's on like donkey kong! yeah!"), when he is angry (Oh it is ON like donkey kong...).  Each time is a little different and I just never seem to tire of it.