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.

by Jack Metzler April 2, 2008

[sex] ratio

A term used to define how many days a week your partner expects to have sex. See example below...

Joe: So Gina, how many days a week do you expect to have sex?
Gina: I'd say about three...
Joe: Right, so your sex ratio is 3:7...
Gina: What the f**k?

by Wrath of Kleptos October 22, 2008

Ass to Waist Ratio

The size of a woman waist in contrast to the size of her ass. Normally this is seen on women with like a 40 plus ass with a 20 something waist.

JoiRydah, Elke The Stallion, CoCo Austin, Siobahn Ford, Angela Finney, Ass To Waist Ratio

by TheOriginalStealth June 11, 2010

Tit to leg ratio (TTLR)

This is a definition of how a girls leg to boob ratio stacks up. You do not take the face into account. First you look at the legs of a girl, NEVER trust the calfs. So it is from the knee upwards. You are looking for, tone, shape and general smooth/sexyness. You then move up to the boobs. The bigger the better! The reason you look at the legs first is to filter out any poor calls, i.e. by giving a girl a good ration only to find out she has legs like a Roman Legionair which is never a good thing. You give a mark out of 10 and carry on with your day.

How to grade a Tit to leg ratio (TTLR)

Perfect, long legs, great boobs = 10

Fat stubby legs, small boobs = 0

Everything else is for you to decide.

by Max Power 007 December 14, 2010

ratbike

A motorcycle bought for less than $1000, repaired and kept in what resembles working order with whatever parts will work, and painted (if ever) with a black rattlecan.

I don't need to keep it locked up in my garage; it's just a ratbike.

by Timberwoof April 17, 2003

Thumb rating

Urban Dictionary's new system of rating definitions that sucks harder than a young Thaiwanese boy.

The infamous "fo' shizzle my nizzle" (first definition) used to have thousands of five star ratings, but now has 20 thumbs up.

by Peter G June 1, 2004

Rational American Thinking

The simplistic logic system of Bush supporters and other morons - apparently you have to trust him because he's President (even though 49% of the US population didn't vote for him), and anyone who criticises America is either jealous of their greatness, embittered French people who surrender all too easily, or a member of the global al-Qu'eda network.

"America: If you don't like it, LEAVE!!!"

by OD Smith March 23, 2005