Biting, without the use of teeth. To lip, simply pull your lips in then bite someone as you normally would. Feels like being bitten by grandmothers.
I heard him say that he's been lipping her. Yeah, it's pretty serious.
by The Lipinator May 04, 2011
Laughing in person
Wow, I was lipping so hard yesterday after you tripped!
by Lip'd October 30, 2012
Lying in public places
When you see people LIPPING in the trafford centre :]
by salsaa February 15, 2010