flass

When you're scratching your ass and find a stray hair, and as you pull it out you realize it's actually in your arsehole, like floss, but up your ass.

It was so embarASSing when I yanked that flass out during my threesome with Earl and Lorlene.

by Millergirl601 November 30, 2006

flass

To floss someone's posterior crevice. See "flassing."

He seriously needs to flass; his BO is unbelievable!

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

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

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 01, 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

flasses

Glasses that do not contain prescribed lenses, usually found on the shelves of your local Dollar General. worn by women who want to look sophisticated or cop out of putting on make-up/doing hair.

"check her out, she is totally sporting flasses"
"those can't be real, they are deffin. flasses!"

by Pyrotastic December 01, 2007