Jailbait lookalike: A gal who dress, acts, and appears to be jailbait, who, in reality, and upon closer inspection is of legal age. (see also:
jail bait and switch)
Tyler:
Are you kidding me?!?! You slept with Camille? You're going to jail, bro!
Matt:
HA! Joke's on you! She bought the beer last night, she has a tattoo, and she's a junior in college. She blew me in her dorm room and introduced me to her ferret. I guess those braces and cartoon shirts fooled you! She's just a jailbait lookalike!