The act of someone kissing you while in a relationship.
He bent down and kissed me and then 1 month later he told me he’s in a relationship this whole time. So he lip raped me.
When someone has herpes on their lips.
Bro be careful macking or goin down on ratchet hoes, you goin get boo-boo lip.
This is when a girl, or man, takes just the tip of the penis into their mouth and jerks the man off to completion in their mouth.
Sally didn't want a mess to clean up, so she gave him a lip bound tuggy
When a little weasel can’t stay awake in a work truck
Ozzy stop getting your lips out
when two people realize they've kissed and/or made out with the same person.
addendum: the closeness of the relationship is dependent on the length of time passed between said incidences. Like, if two people "crossed paths" over the course of a week, it would be known as "lip twins." But if it occurred years apart it would be "lip cousins."
"ashley! i can't believe we made out with the same boy!"
"yeah. we're totally lip cousins."