Cadillac Bumper Bullets are most often
mid-size breasts that are far too tightly reined in by a badly designed or poorly
fit pushup bra, that has them squeezed into a shape very much
like a rounded cone. Commonly found on cougars trying to fight gravity, but occasionally on a younger girl that wishes she were bigger across the bosom. It lends an almost comical appearance.
Exceptions to this are sometimes found in the case of a very young girl of around 17 or
18, who is getting very buxom very fast, and her breasts seem to reach straight out from the shoulder...these are more correctly called sweater bumpers, but when the
girls breasts are
extra-large the terms become interchangeable.
"heheh, check the Cadillac Bumper Bullets on the
cougar in the leopard
skin, betcha it took half an hour to get that
thing on"
or
"that little redheaded chick Robin is some looker, isn't she? and what a pair of CBB's she's got"