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2.
A large lower lip that makes it appear as if a person constantly has a dip in.
Dude, you lip is huge! do you have a dip in?

No brah i just got a dip lip.
by Mega Money Maker October 18, 2011
 
1.
when you put any number of pinches of chewing tobacco in your bottom lip and the visibility of it
damn son, i can see your dip lip from a mile away
by raymond granite March 29, 2010