Flappin 

A person who continues to speak without any real knowledge and thinks they know exactly what they are talking about.

Boa yo ass jus flappin now Lebron not winning a ring with the lakers

Flappin by AJ_2KYT November 24, 2018

Flappin 

Use of cocaine, and or, being high on cocaine

Tommy- Ayo Johnny! We drinkin tonight!?

Johnny- Yessir! We gonna get fucked up! You down to get Flappin tonight!?

Tommy- Aww Hell Yea!!! Imma hit up Lorenzo for a bird!

Johnny- HAHAHAA! My nigga we reckless...LEGGOO!!!

Flappin by McFlappin December 15, 2012

flappin 

being broke as hell, stretched out to the max, or struggling for work

this guy is flappin in the wind

flappin by Philip Crescenzo February 28, 2008

flappin 

talkin shit about another person!!!!! exp frsheys people

why u flappin bout freshys>

flappin by yossi101 January 10, 2008

flappin 

when something lame or bad

man that burnt toast was flappin man

flappin by rockykat11 January 3, 2022

Flappin' 

The act of a female with obvious labia wearing short shorts, underwear, swimsuit, etc., and in a position to where said labia is exposed in some way. Mostly frowned upon by the male gender, although when tolerated, strong sexual arousal is common.

Guy 1: Check it out dude! That chick with the booty shorts is totally Flappin'!

Guy 2: She is so fine.

Flappin' by 69unfaithful December 14, 2009

flappin' the flipstick 

Gettin yo' dick beat.

-Adam and Jenn "walking" in the park.

Alex - whats Adam doing?
Party Arty- flappin' the flipstick
Alex - WHAT??
Party Arty - they're walking in the woods...

flappin' the flipstick by P.Arty February 16, 2009