Top Definition
When an irishman gets so drunk he mistakes your bum for your neck.
Not to be confused with Big-ass hickey.
Jordan was so shocked by the sight of the damage Connor's mouth did to Julia's left ass cheek that she exclaimed, "Julia, why would you let him give you such a BIG ASS HICKEY?!"
by ThunderBuddies4LIFE696969 September 04, 2012
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