The sound that one makes when irritated, frustrated or just pissed. Very popular in the urban world. Sounds like a leaking tire.
The Flat Tire:
Cop: Put your hands on the car.
Urban Kid: Psssssssssssssssssssssssssssssssssssssssssssssss maaaannnn (imitating the sound of a leaking deflating flat tire)
Cop: Put your hands on the car.
Urban Kid: Psssssssssssssssssssssssssssssssssssssssssssssss maaaannnn (imitating the sound of a leaking deflating flat tire)
by Snakepliskken November 19, 2017
 Get the The Flat Tiremug.
Get the The Flat Tiremug. when you punch a person in their breast implants so hard that they burst, thus giving their chest the appearance of a flat tire.
by jermlova March 18, 2011
 Get the Flat Tiremug.
Get the Flat Tiremug. I totally gave this chick a flat tire last night. She was pissed, but at least it wasn't a blow out.
by Josh Hug December 4, 2009
 Get the flat tiremug.
Get the flat tiremug. by EdwardBerry December 26, 2007
 Get the Flat Tiremug.
Get the Flat Tiremug. I have a really crappy hand that I shouldn't be playing, but it has a clever name.  I love flat tires.
by bs May 13, 2005
 Get the Flat tiremug.
Get the Flat tiremug. by Libertine October 2, 2005
 Get the flat tiremug.
Get the flat tiremug. by Coell May 14, 2005
 Get the flat tiremug.
Get the flat tiremug.