racer straps

When a woman or girl wears a racer-back or t-back tank top over a regular bra.
This results in double strappage and the bra straps are clearly visible going straight up the back while the tank top has arched straps.

Girl 1: Melissa has racer straps right now.

Girl 2: I know, she does it to show off that she wears bras or something.

boobsession

1. When girls have an obsession with obtaining the largest boobs possible, using surgery or not.

2. When guys are obessed with girl's boobs and won't date a girl unless she has greate boobs.

Definition 1

Girl 1: Janie totally has a boobsession.

Girl 2: I know! She's constantly trying all these breast growing lotions!

Definition 2

Guy 1: Look at Max, he has a huge boobsession!

Guy 2: He rejected Lindsay last night because she didn't have a full C cup!!