vulgar slang Breasts. Can also be used in the singular. Yeah, but her boosiasms never used to be that big. Did she get a boob job or something?
boosiasm
verb
See boosiasms
boosiasm(s)
n. a woman’s breasts. (A blend of bosom and enthusiasm. Occurs both as a count and a noncount noun. Old but recurrent. Usually objectionable.) Did you see the boosiasms on that dame?