When you've just told someone something they don't appreciate (e.g. insulted them, their family, or anything else in general) and they're getting all exasperated, and are trying to think of something to yell at you, but their brains aren't as quick as their mouth, so their lips start moving around just gettin' ready for the words with their facial expression still shocked.
So, I called her a dumbass, and I was doing really well at keeping my laughter in check, until she started lip flappin'.
The act of producing a wet slapping noise with your labia similar to that of grabbing your cheeks and moving them in a rapid succession. Typically pertaining to women with larger than average or low hanging labia.
Damnit Sami, stop shaking your legs, I can hear your squid lipping!
Hey dude did you see Jamal’s mouth? “Yeah he had massive grape lips.”
when your lips turn purple the morning after an ecstacy session and resemble grapes.
"hey petey how many yokes did ye swallow last night, thats some whopper pair of grape lips on ye"
Common phrase for a nicotine pouch.
Yo bro, can I get an upper decker lip pillow.