Flassing

Treating a girl like shit in order to manipulate her into finding you attractive, at least for a day or two. You completely disregard the females feelings to control her.

Sohil, you were flassing too hard back there, I thought she was going to slap the shit out of you.

by Dyingforsleep November 20, 2012

Flassing

1.flossing one's ass.

2.To floss an ass.

"Robin likes to Flass his mom"

"Where is Sanders? He's flassing"

"Sure am Glad I'm not flassing....like Robin is in the Gazebo...with his mom"

by Cyrus224 October 13, 2005

Flassing

To clean the crevice of someone's posterior with floss, spatula, tumbleweed, or any other implements suitable for the task.

Flassing is recommended for people who have a great deal of things stuffed in or up their cracks that they become stiff and obnoxious.
Warning: Consult your physician if you experience rashes, blisters, or any other physical discomfort from doing said activity.

by Sanders(Co-producer of the Word) October 14, 2005

Flass

A flass is a flat ass.

1 a) Usually a flat ass on a woman.

1 b) Usually a flat ass on a man.

1 a) Man: That woman isn't sexy. She has a flass.

1 b) Woman: That man isn't sexy. He has a flass.

by HawaiianPunch1 July 16, 2023

Flass

1) A flat ass

Person 1: "Oh my goodness look at that skinny bitch!"'
Person 2: "Haha, yeah, look at the flass!!!"

by forwhatitsworth July 1, 2009

Flass

Simply when one has a flat ass. Hence Flass.

That girl has quite the Flass!

by Roy Michin May 17, 2015

Flass

Having a small butt

She's gotta flass dude..

by Salmontiddy December 28, 2016