oat 

of all time, goat = greatest of all time, oat = of all time

Kanye west has the best discography oat

oat by HSWHWNHS January 23, 2022

Oat 

Slang term for money, similar to paper.

"Yo we hustle at the box factory to get that oat!"

Oat by VG4life October 18, 2012

OAT 

Aeronautical abbreviation for "Outside Air Temperature." Almost exclusively given in degrees Celsius.

"Lawrence Tower information Juliet time 2000 Zulu. Wind 300 @ 8. Visibility >10. Sky Scattered @ 1-2000. OAT 9. Dew point 2. Altimeter 30.07. Landing and departing runway 32. Advise on initial contact you have Juliet."

OAT by Cataphract_40 November 28, 2004

Oat 

Oat.: used to describe very strong cannabis (can sometimes be misheard as the noun: 'ant').

"Hey bob, I smoked some well good Oat the other night!"

Oat by Fin_Beast May 20, 2004

oat 

Acronym for Of All Time

omgz ShinjixKaworu from NGE r lyk my OTP OAT!!!

oat by miho9000 April 18, 2008

oat 

a fit, good-looking girl

i got with a girl last night, she was an oat.

oat by dtron90 January 1, 2009

oat 

Over Achieving Teenagers, implies to anyone who is working too much, is stressed, and just tries too hard. Often people who gets grades such as C's and B's but still consider they failed and did not do enough.

Person A: What did you get on the test? Person B: Man i friggen missed up. The multiple choice screwed me over. Person A: (Looks at Person B test paper) ... you got a 96 -_- Person B: It's horrible. Person A: you friggen oat -_-

oat by failingBminus October 27, 2006