la jee

Talked to my wife today, she used a word I didn't understand "la jee", it had something to do with after dinner. I think she meant 垃圾 lā jī as in trash. Apparently it's derogatory when used toward another person. It reminds me of the word 逻辑 luó jī meaning logic. I'll find out soon enough, I'll her something has 垃圾逻辑. We'll see.