Girl With Big Ass Buttocks

• pygoscopia means observing someone's rear; pygoscopophobia a pathological fear to be its unwilling object
• pygalgia is soreness in the buttocks, i.e. a pain in the rump.
• Steatopygia is a marked accumulation of fat in and around the buttocks.
uropygial in ornithology mean, situated on, belonging to, the uropygium, i.e. the rump of a bird