It was something that was big when I was in 2nd or 3rd grade. We would direct the mark to pretend to get a Coke out of an imaginary refrigerator, then drink it. Then we'd say: "Me Chinese, me play joke, me go peepee in your Coke."
Eh...what even...?...?...?...why...? I guess it's better than the crap kids are saying at school nowadays. You'd be amazed (probably not) at how many "great" words 3rd graders know, like some of it I didn't know till like freakin 6-7th grade. It's honestly terrible.