A girl has a hideous face but a very fuckable body. So when it comes time to banging the shit out of her you put a bag over her head, and you put a bag over your head also just incase hers falls off.
Bob: Holy balls check out that chicks face!
Chuck: Barf!!!
Bob: But shes got a smokin' bod
Chuck: Yeah, a prime candidate for a texas double bagger
When someone breaks up with their partner, and quickly rebounds, subsequently dumping, or being dumped by, the rebound. The person becomes doubly depressed as they didn't properly grieve for the first relationship, so are projecting their feelings onto the rebound break up.
"God, She really needs to get over Stan. They only dated for like three weeks and she's so cut up about it"
"Don't you know, she broke up with her boyfriend of 2 years just before. It's just rebound double depression"