Where do they learn to talk like this?!!!

Normally I take Elie's chupo (pacifier) from him as soon as I go into his room in the morning.  Well this particular day we were running late and I just wanted to get the boys ready for school and in the car without a fuss... so I thought I'd let him keep it until I get him in his carseat.  So, I get him all strapped in according to plan but just as I'm about to yank it from his mouth he says, "Don even fink 'bout taka ma chupo!" (Don't even think about taking my chupo!"