flashjack 

A flashback jack-off session. Thinking about a previous sexual encounter whilst masturbating.

Mike: I'm gonna go jack off to that hot chick I had sex with last weekend.
Steve: Man I love a good flashjack.

flashjack by kevdogg85 January 20, 2009

flip like a flapjack

to change your ideas, views, attitude, to the limit, on a permanent basis.

Most politicians just flip like a flapjack, you never know who they'll be siding with tomorrow.

flip like a flapjack by cristina lagarde August 30, 2008

Falshback 

When something sparks a drunken memory, but the person telling the story tells it wrong and has to be corrected by someone sober enough to remember.

Brah 1: I got a ride home from one of the bartenders. She was hot.

Brah 2: Nope, you’re having another falshback. You drove yourself home, slid into the mailbox, and slept with some nasty older lady.

Falshback by iBetty December 27, 2012

happy flapjack 

A sexual act in which the male pours syrup on the girls breasts and vagina. He then ejaculates into the syrup and pours oats onto the woman. She then begins to eat the mixture.

Wanna go baking? We can have a couple of happy flapjacks?

happy flapjack by Singing Richard November 4, 2014

Flapjack booty 

A debilitating disease where the suffer is endowed with a non-spherical, flat shape of booty. Named such due to the striking resemblance to a side-by-side pair of pancakes. Flapjack ass can be cured with regular visits to your local gym, where it's possible to perform enough squats to fashion a round, bouncy booty capable of correctly filling out a pair of jeans. Flapjack ass is most common amongst male members of the Caucasian race, but there is no solid scientific evidence to conclude it doesn't affect the other races as well. Occasionally present in females, but is much more common in males. When flapjack ass is discovered on a woman, it's often so rare that your local newspaper may give a cash prize to the lucky photographer who can capture one on camera.

"Lo, look at that face! Alas, it seems he suffers from Flapjack booty! He does not appear to be a suitable mate. How unfortunate."

Flapjack booty by jkejke February 9, 2014

Flapjack Titties 

When a bitch has those weird titties that flop around and sag down with that weird fold. Them chimpanzee titties.

Damn you see that nasty bitch over there with them flapjack titties? GROSS!!!

Flapjack Titties by _viper_ May 13, 2014

Vietnam Flashback 

When you remember a (usually) traumatic experience and disconnect all outside distractions.

Ariana: I think Mikey is high..
Justin: Nah, she is having a Vietnam Flashback from when she was on Hannah Montana.
Selena: I get it. Disney is awful.
Ariana: Yeah, Nickelodeon is better.

Vietnam Flashback by TheDonutLordOfVietnam September 5, 2016