The passive aggressive look you get from your wife when you haven’t done something or, asked for sex. It’s characterised by a straight mouth, with mildly pursed lips, a raised yet furrowed brow, and rarely any verbal communication.
by Poot Rancid November 4, 2023

by Venxm January 20, 2021

A type of an engine configuration; there are four cylinders which are arranged in a flat opposing configuration. They're found in many different Subaru models (The Boxer Engine) and also found in classic VW Beetles.
Everyone panics & hides in their houses when it's snowing out, but not me, my world is flat; I grab my keys & head out to play in my flat four (4 banger)!
by Thorka June 20, 2016

by fvrgbthnrgfbdxbd June 4, 2022

When I am out in the club lookin' for a girl, I roll FLAT. I don't want someone else messing up my game.
by Stevirino June 21, 2008

nasty girls with NO ass
by Vinazza March 9, 2008

Slip on shoes for men (not loafers, moccasins, or lace-less converse), generally patterned, lace-less, and are canvas or cotton topped. Man flats are commonly worn by scenesters and emos, and are a common accessory to skinny-pants. Although called man flats, man flats are also commonly found on the feet of girls and should still be referred to as man flats.
by Quincy Dutch May 15, 2008
