1 definition by Adam Bucci

Top Definition
pack in rubbing tobacco to the point where it extends completely around the lip from side to side, thus forming a horseshoe like shape with your lip. Usually the shape of the lip with someone who has an excessive amount of rubbing tobacco (ie skoal, copenhagen) in their lip
Mike has a horseshoe lip in right now.
I am gonna go back after this test and pack a horseshoe.
by Adam Bucci April 16, 2008

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