A person who is named Charlie, who is under 5 feet tall and thinks they are better than everyone else in his friend group. Also has a secret obsession with pokemon.
Mike:Hey "lordcharchar"
Charlie: Don't call me that!
Mike: Okay lordcharchar
A Charlie trap is a person who hasn't grown since they were 10 years old, and they could easily dress like a girl and get away with it, thus being a trap.
Mike: Dude that girl is probably a charlie trap.
Dylan: Really? That would make sence.