Vaginas, or a woman’s sexual organ, is referenced across the film in quite a few ways,
Euphemstically and Idiomtatically in the pantry as tang, clams (which could also just be a euphemism for money, but it’s both.. so it’s both.)
Jack refers to Wendy as “the old sperm bank upstairs”, eyes down a blonde woman while touring the bedroom, embraces and kisses a naked blonde woman (who turns out to be a grotesquely aggressive dead elderly woman), pornographic images of women show up in garages, the Boiler room, and Halloran’s condo, and symbolically in the lamps and woodwork.
In this image · No.16
The sexual slang reading of clams connects money, ownership, and the casual sexualization of women.