Person 1: hey did you here about Dave?
Person 2: yeah he got caught doing a dapto flap by the police
Person 2: yeah he got caught doing a dapto flap by the police
by Zane_2528 May 26, 2021

by audkap February 11, 2008

When look at the penis externally, the flap of mars is where the scrotum curls around the side of the shaft, leaving a flap which doesn't move without prodding or poking.
Man 1: I've got a big dick.
Man 2: Yeah, but The Flap of Mars in your pants is below average in terms of flaccidity.
Man 1: ...damn.
Man 2: Yeah, but The Flap of Mars in your pants is below average in terms of flaccidity.
Man 1: ...damn.
by NigelMarsflap June 4, 2010

by YOGURLINSHORTS March 24, 2017

by WinterFRESH_ November 4, 2010

Yo did you get with Hannah last night?
Yeah dude. Her yak flaps made me feel like I was at an Arby’s drive thru.
Yeah dude. Her yak flaps made me feel like I was at an Arby’s drive thru.
by Dirtyblazer August 27, 2023

The instance of a man unexpectedly getting hit (skin to skin) with another man's penis in a nude bar.
Pat turned around to his buddy at the nude bar and says" Dude that guy just Flap Jacked me with his dick and it touched my hand!
by MGM629 August 8, 2016
