Top Definition
A grade 'A' idiot, a cem the stem can be found hanging out near schools and outside of nightclubs, in order to pick up younger girls and try to look cool.

Usually slightly creepy and has, in the past, been rejected by his own peers, he gains satisfaction from feeling important and liked.
'Who's that cem the stem outside the club? He's trying to get with that seventeen year old. What a creep.
by corythedevil October 14, 2011

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