Gum to Tooth Ratio 

The ratio of the amount of gum showing relative to the size of teeth when one smiles or opens there mouth.

I was on a date with this chick when she opened her mouth, and there was so much gum there, I couldn't even tell that she had teeth. overall, it was a horrible gum to tooth ratio

Gum to Tooth Ratio by suckmyd May 11, 2012

kill ratio 

in gaming, the number of kills in relation to the number of deaths by a player

an even kill ratio would be 1:1, where a player has killed as many opponents as have killed him

most players strive for a 2:1 kill ratio or higher

kill ratio by KarmaGhost April 27, 2004

The Ratio

The number of men compared to females. The ratio should be taken in to consideration to avoid a sausage fest.

Person 1 "Did you go to Jacobs yesterday it was a sausage fest"

Person 2 " They obviously didn't take the ratio in to consideration"

The Ratio by Mavro July 12, 2012

Gash Ratio 

The number of girls to every boy at an party/event.

Marc: Dude, there are like 25 girls and 15 boys at this party!

James: Holy shit, man. That's a gash ratio of like 1.7!

Gash Ratio by Jaroman December 14, 2010

P.T.B.U. ratio 

abbreviation for "Potential to Blow Up ratio", which is a scale ranging from 1 (low) to 10 (high), that rates the chances a currently hot girl will someday gain weight and become overly chubby and unattractive.

Key note: One night hookups are exempt from the P.T.B.U ratio as the girl being rated is usually hot, and even though she is likely to blow up in the future, the aforementioned potential blow up will not effect her current hotness.

Tom: "Check out that chick over there... she is smoking hot."

Brent: "Dude, look her thick upper arms and those kankles, she's got a high P.T.B.U. ratio.

Tom: "Man, who says I'm proposing? Bang it tonight, leave it tomorrow.

P.T.B.U. ratio by Jack Metzler April 3, 2008

signal to noise ratio

The approximate ratio of content-rich and interesting posts to trolls, flamewars, random shit and somesuch.

Man, the signal to noise ratio of this board dropped like a fucking rock when he started posting.

signal to noise ratio by 290 September 1, 2003

Fart Absorption Ratio 

Fart Absorption Ratio or F.A.R.

The number of farts until an object has absorbed its maximum volume or amount of methane. At such a point the object then begins to release the trapped methane(Farts) whenever it is disturbed. Now this generally only applies to furniture, but can also be applied to other items such as carpet or clothing. In all reality this term applies to any object that can absorb gaseous emissions.

Jimmy new he had pushed the chair past its Fart Absorption Ratio when he could no longer sit down without it emiting past odors. It was now time to buy a new chair.

After maxing out her coats F.A.R. by accidentally farting on it. Kelly wondered if she really wanted to hug Jack.

John gasped for air as his lung reached their Fart Absorption Ratio.

Fart Absorption Ratio by Captain Ahabs March 13, 2010