A Babadook
A Middle Eastern way to say your butt is bigger than a mountain. Like a donkey’s butt after a long ride.
"My uncle’s butt is the Babadook.", @ButtLover123
"That woman has the Babadook for a butt.", @ButtEnvy
"I got the Babadook for my birthday. It came with a fanny pack.", @FannyPackFan