gopher tits
A woman (usually an older woman) who has long saggy breasts. Derived from: "Her tits are so saggy that when she takes her bra off they GO FOR the ground... hence gopher tits.
Ex. My wife's breasts used to be a perky 36B, but now that she is pushing 50 they are more like a 42 long. Now she has fucking gopher tits!