Flank and Spank 

When you're playing Gears of War, or any other online game, and you flank the enemy, and give a good ol' spank from your shotgun, or any other weapon of choice. Usually is a technical Flank and Spank if the enemy didn't even know you were there.

Respek: He doesn't even know I'm here...
Standing Freddy: Then give him the ol' Flank and Spank!

Flank and Spank by Standing Freddy March 2, 2007

Flank Wanker 

Derived from the negative aspect of the "Radical Flank Effect", Flank Wankers are those who discredit their sociopolitical cause by being generally loud, obnoxious, and closed to discussion. Flank Wankers demean the cause by offending the general public and making it difficult for moderates to associate with the movement they represent.

"Man, #blacklivesmatter was going super strong till those Flank Wankers interrupted the Bernie Sanders rally up in Seattle."

Flank Wanker by UND3AD_ELMO November 21, 2016

Flank Floppa 

An absolute god and a cutie

A1: who's Flank Floppa?
A2: I will show you my child

Flank Floppa by Spaceman250 May 4, 2021

Flank O' A Frank

The most pleasing portion of the nude male figure.

Young Woman No. 1: I just saw this super hot guy get out of the shower.
Young Woman No. 2: Oh my god.
Young Woman No. 1: Yeah. And guess what? I totally saw his ...
Young Woman No. 2: ... Flank O' A Frank?
Young Woman No. 1: Yeah.

Flank O' A Frank by Frank-B-Q September 7, 2011

Flank and Shank 

A term originating from Call of Duty Modern Warfare 2 where one attempts to flank, get to an opposite side or objective using stealth, then proceed to shank the victim(s), prison term for knifing.

Loser 1: Dude I had the best game ever, I flank and shank the entire team.
Loser 2: Wow thats straight out of shawshank man.

Flank and Shank by Daniel Yaa5 March 9, 2010

Flank Basket 

A term widely used to describe a gentleman or lady's undercarriage, especially if said undercarriage resembles a cut of venison.

You, Sir, are a flank basket to the highest degree!
Stop wiggling your flank basket in front of me.

Remove your flank basket from the vicinity!
Wrap your flank basket for added protection.

Flank Basket by FlankBaskets December 11, 2013

flank fat 

fat covering the area of the lower back below the rib-cage and down to the iliac crest.

Even though I eat right and exercise, I can't seem to lose this flank fat.

flank fat by pcb006 January 25, 2017