Akin to the nip slip. When a woman's pussy lip slips out of her thong or underwear. Short skirts and shorts provide the best opportunity for lip slip viewing.
Dude, after Chetto's girlfriend got up from the chair, I was pleasantly surprised by the lip slip she had going on with that short skirt.
by Merkin Donor II March 27, 2008

by NCrules01 June 02, 2015

by anonymous May 04, 2020

When one is wearing a mask and has a wardrobe malfunction so that your lips have been exposed, thus increasing the likelihood of a viral transmission.
by GenericAlias December 12, 2020

Person: "There's no doubt that Joe Biden is a good president"
Every Conservative In A 3 Mile Radius: =_______=
Person: "Oh sorry, I lip slipped"
Every Conservative In A 3 Mile Radius: =_______=
Person: "Oh sorry, I lip slipped"
by Retard_Ryan February 08, 2023
