bummy

listen to the pronunciation of bummy
English - English
bottom; buttocks

When she felt that it was firm enough, she whispered, “Now put your hands on the cheeks of my bummy, dear, and open them up so my little hole will be ready for your big sweet cock!”.

Like a bum (homeless person or hobo)

An unsuccessful dude would dress all bummy and stuff. A successful person would dress like perfect; they'd not dress bummy at all.