Means to have a small penis. This is also someone who is usually a dumbass who thinks he's smart. Hes not really that good at anything and he is the guy you know will never get a girl.
Dam you where being such a chenko all day.
by Odoffofo November 06, 2008
Somone who pretends to be straight to look cool but is actually gay.
Dont act like she's hot, you chenko!
by endmorton November 06, 2008