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)
by Snakepliskken November 19, 2017
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when you punch a person in their breast implants so hard that they burst, thus giving their chest the appearance of a flat tire.
I accidentally elbowed her in the left tit and now she has got a flat tire
by jermlova March 4, 2011
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A sex act where the male intentionally loses his erection.
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 5, 2009
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When a person walks with a limp due to having a shorter leg than the other leg.
That dude is a flat tire he walks like a fucking dumbass!!
by EdwardBerry November 26, 2007
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Hand in Texas Hold'em, a jack-four. Derived from:

Q: What's a jack for?
A: A flat tire
I have a really crappy hand that I shouldn't be playing, but it has a clever name. I love flat tires.
by bs February 14, 2005
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His date was such a flat tire that he snuck out the back door and ditched her at the restaurant.
by Libertine October 2, 2005
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In poker, a hand that needs a jack to improve.
"If I don't get a jack on the river, my straight's gonna be a flat tire."
by Coell May 13, 2005
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