2. Group of good looking females, usually with ample breasts.
3. Ample and aesthetic breasts. Juggs. Hooters.
2. Dude! look at those bumpers sitting there. Think we should make a move?
3. She removed her bra, man, and one look at those bumpers on her and i almost dropped.
Used in parts of Australia as a noun ("You're a bumper, mate!") and occasionally as an adjective, e.g "He supports a bumper football team."
"He's too much of a bumper to ever work that out!"
"Only a bumper wouldn't be able to do that."
"That's a bumper thing to do!"