Twin Language

Ever since the boys could talk they'd say the word "me-mo" I think. We'd be at Wal-Mart and they'd see a stranger, point and say "me-mo, me-mo" and die laughing. They've even called me me-mo before. For the life of me I can not figure out what they're saying or referring to. I've asked them "are you saying nemo or elmo" and they say "no" and laugh. I've always figured they're callin me something dirty in their own "twin" language. Tonight at dinner Eli says "me-mo" and both boys burst out in hysterics. Macie and I both try again to interpret what they're saying. I ask Austin "what does that mean" and he says "it's a dirty word", which I've figured all along..But does a 4 year old really know which words are dirty? With no help from Jason - he starts tellin them to say various quotes from Talladega nights, which I stop b/c I don't want to be at Wal-Mart and them sayin those nice quotes to total strangers..The only thing Eli remembered from his Talladega Nights lesson was "you white trash can". hahahahahaha