Mumangoes can be used to describe
mammoth mammaries. It kinda attempts to
fuse magnanimous, used in its meaning of generosity, and mangoes, a
well-known term for boobs. So a generous helping of mangoes, ie a pair of massive mammaries, can simply be called Mumangoes.
A:
Dude did you see the Two and a half men epi last night?
B: Yeah man... That new chick got introduced,
Chelsea!
A: Fuck yeah man did you see those mumangoes? They're
fucking ridick!