Flopjacking 

Sadly masturbating with a flaccid penis, when the hardness is fairly similar to that of a flapjack.

John is way too drunk tonight, no way is he closing with Mary. He'll probably end up going home alone and flopjacking.

Flopjacking by ValiantDonut738 October 23, 2017

flapjackin'

The act of folding the excess body cleavage of an obese man or woman, typically used for making sweet love to an alternative orafice. Crisco, rendered bacon fat and luke warm butter are all optional.

Leroy: Dude, I went hoggin' on some white bread last night.
Darryl: Did you get the stank?
Leroy: (ashamed look)
Darryl: Don't tell me you went flapjackin' again mothafucka!
Leroy: It wasn't my fault, dat bitch passed out cold so I found a flap and I jacked it!
Darryl: Hell yeah! Jack dat flap negro!

flapjackin' by DarrylandLeroy January 30, 2009

Flapjacking 

A male with an erection, lies on his back while a second erect male inserts the penis of the first into his anus then lies back. A third male inserts the penis of the second into his anus and lies back forming a stack. A three man stack is known as a short stack, A stack of four or more is known as a full stack. Full stacking has the added benefit of asphyxiating the bottom participants. The flapjacking experience can be enhanced by using maple syrup as lube and having each participant massage the balls of the person above.

Mark, Mike, Jason and Joel were planning a full stack flapjacking session last night but Joel didn't show, so the three had to make do with a short stack.

Flapjacking by crankbait July 27, 2012

Flapjacking 

Motorboating a girls ass.

That girls ass was so round and fat that I was flapjacking that shit all night long!!

Flapjacking by jjstl April 27, 2010

flapjacking 

to roll down the windows of your car and let your boobs hang out and flap in the wind.

emma was flapjacking last night.

flapjacking by ashannah March 3, 2010

Flapjacking 

"flapjacking!" (v.) - to engage in sexual interaction with another. (2) Usually follows cupcaking and/or cheesecaking.

I was flapjacking all night long with this FINE ass girl named mahlet!

Flapjacking by Mahlet, Sable December 8, 2006

FlapJacking 

Bobbing your legs back and forrth causinfg the excess fat of your thighs to smack together in the hopes of achieving "discreet," public masturbation

Dude I was totally flapjacking in that business meeting today

FlapJacking by levaus January 7, 2014