lip slut 

A person who makes out with people indiscriminately. Caliber of victim normally doesn't factor in and therefore can be quite low. Doesn't usually take it past second base tig ol' bitties. Tend to not care about their conquests.

"Liam is a lip slut, he pulled Alison's friend and called Amber to come over that night."
"Damn dat bitch be uuglay fugly, she needs to get with a lip slut"

lip slut by Liam the Lip Slut January 22, 2005

lip slut 

A beauty blogger who always posts provocative, up close photos of her lips on Instagram, usually with a phallic object in the frame, such as a tub of lip gloss.

This beauty blogger is only popular because she's such a lip slut.

lip slut by SpringBreak4Life June 12, 2018

Slut Lip 

from the Latin form Slutus Lipus, meaning to be a foul-mouthed whore

wow, look at that skank over there swearing up a storm at that guy, what a slut lip.

Slut Lip by Muffin Pants Productions May 28, 2010

slut lip 

when you are making out with a guy and he bites your lips and the next day they are swollen and the blood vessels are broken

"Last night I was having a hot make out with Matt Rafferty and the slut lip he gave me made my lips look so full today!"

slut lip by Kelly and Claire November 6, 2007

slut lip 

when you are making out hxc and the boy/girl bites on your lips repeatedly, causing tenderness and swelling come morning

holy moly! my slut lips look so full and luscious after my hxc makeout with matt.

slut lip by claire delaney November 24, 2007

lipslut 

Someone who likes to make out with several different partners, usually at random, especially when intoxicated.

I lipslutted with the cutest guy last night!

lipslut by Turnip17 May 27, 2008