"Big Booty Asian Twink" is a phrase that specifically refers to the context of Garam Han from the PEAK manhwa: No More Eurydice. The fandom cannot get enough of this "BBAT." It can also be referred when you are experiencing a moment of extreme positivity and you express yourself as Garam, such as when you clutch a game.
Wow! Garam Han is mesmerizing... That BBAT~
- Walter Kruger
Slang mainly in prostitution circles and used to describe what a particular call girl will do. In this case Anal sex without the use of a condom followed immediatly by oral sex.
An actual craigslist ad:
Let this young lady charm your heart with all her special talents. A brunette with blue eyes, who could resist such a beauty. Availiable appointments now.
$800/hr- bbatm
$600/hr- bb
$450/hr- greek $300/hr- full service