AA

1) an oft-forgotten bra size implying itty-bitty but quite cute boobs
2) a person of said size

1) Jenny has trouble finding AA lingerie.
2) Monica is a petite and sexy AA.

by Jack Sprat May 15, 2005

AA

Approach Anxiety - Term used in the pick-up community, for the fear of approaching women.

"I went to the bar but opened no sets because of my AA problem"

by Ian Miller February 22, 2007

AAS

anabolic/androgenic steroids, sex hormones like testosterone with both anabolic (tissue-building) and androgenic (masculinizing) properties.

"I was reading about AAS on the weightlifting site."

by Bjaarki December 23, 2004

AA

size of a battery used in portable devices such as radios, music players, flashlights...usually a 1.5V (volt)in Alkaline or a 1.2V in rechargeable. Can be used alone, or in combination with other AA batteries as decided by the device manufacturer.

zeke:get a package of AA batteries for me at the store
zack: ya want 48 from Costco or 2 from 7-11??

by BB April 4, 2005

AA

Type of lava (seriously)

Er... that's nice aa... er... burning my face off

by Thoms February 19, 2005

AAS

Probably the school with the shittiest people in the entire world. Here you will get judged, no matter what. People dont care about you, and everybody is fake. THe guys are a bunch of jerk wads while the girls are bitchy and annoying. Overall, AAS is a total piece of shit.

"Oh, he goes to AAS?"
"Poor guy."

by Some guy no one cares about February 28, 2013

AAS

ArschAnSchwanz or AssAtScrotum

A dancing technique where someone grinds their ass on someone’s genitalia

Y: You said you wouldn’t do AAS with other dudes while dancing, but I just saw you doing AAS in front of me!

by allaboutaap August 30, 2021