a kid between the age of 9 and 12. they are usually boys but can be girls sometimes. most of them have blonde tipped hair and they think they are the coolest shit around.
1. sarcastically when you are talking about someone else. This usually means he/she has ditched an event, because they are too cool or tries REALLY hard to "act" cool. for example: being indian and walking with a limp or obnoxiously telling everyone about how they didn't do their homework last night.
2. jokingly when you are talking about yourself. This usually comes up in a conversation likeee shown in the example box. can also be used to flirt when you use it right.
#2.
boy: "why are you wearing such a baggy jacket?"
girl: "cause that's whatcool kids do.(;"
#1.
boy: "dudeeee i TOTALLY didn't study for this test, i was too busy prestiging in black ops and textingg."
girl: "wowww, whatta cool kid."