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a person of unreputable background
that michael is a real hallion.
by aj March 03, 2005
noun Hallion:

1. A messer, a brat, a naughty child.

2. A lady of very little ladylike features, i.e. a Slapper
1. That wee son of yours is a hallion if he was mine i'd wring his neck.

2. Darlin, ur the biggest hallion I know, I'm lovin ur work.
by Mattfink October 06, 2006