The sound one makes when masturbateing to porn on a laptop computer. Also can be the sound mad when your pounding a honey hole and your ballsack and ramrod slam against those meaty lips.
We got home early only to walk in our apartment and hear the sound flap flap flap flap flap flaaaaaaap flap of Tim our virgin roomate wackin off to porn on his laptop.
From the Latin 'Lacina videlicet lorum' this word refers to the thin line of pubic hair on the inner vaginal flaps that is always missed while shaving. Specifically it can be located between the labia majora and the labia minora. It has been said to strongly remind one of the classic male 'chin strap' beard.
"So I was going down on my girl last night and damn. I just could not unsee that flapstrap."
"Girl looked like she had an upside down Jason Derulo down there!"
To flapone's arms in an unsuccessful attempt to prevent objects from falling.
Look at that klutz! All of those books are falling all over the place! Look at him flap the wings! (Making sounds like a chicken, to the unfortunate person): Bok, bok, bok!
Collective noun for a group of Flappers, Gash Gorillas or Clunge Trumpeters. Usually over 40 and looking for a younger man for the night. They often travel in groups and if you walk into a bar where there is more than one group - you've come across a Flap Carnival