Hot British Asian
Used when a pretty female of Asian origin is seen
eg: "Check out that HBA"
Hot By Association
A girl/guy that is the hottest of their friends. However, their friends may not be that hot. Therefore making them seem hotter then they are.
To put it another way the best of a bad bunch.
Bob: Man that chick is hot.
Carl: She's pretty HBA dude.
Bob: Damn your probably right!
Hot Babe Alert
Used when a hot babe is sighted.
Original term from the book unlovable by pearl e. watson.
Two girls are standing on the beach when they see a hot babe paddle by on his surfboard.
Girl1: Whoa! Check it out!
Acronym for Hot Booty Action
Damn Hommie gots to get some HBA from that hoochie