Having a hippobottomus means to showcase a rather excessive amount of flesh in the buttocks area of the body. It is an exceedingly insulting comment to declare one's buttocks a hippobottomus. It is commonly used in the clothing department of speech, as a sales assisstant may need to advertise clothing in the hippobottomus size, which is pants with 100x XL size. A hippobottomus is generally about 10000cm wide, and needs extra-stretchy clothes. Hippobottomus sizes of clothing might only be available from orders from online websites devoted to hippobottomus sizes of clothing. It is a major exaggeration to name one's buttocks a hippobottomus, but also is an extreme insult.
by Cantaloupes4Ever June 10, 2017
"I was chatting up this chick at a booth, and all of a sudden as we get up to dance, I could see she was a full-blown hippobottomus!"
by George Clinton, Captain of the Funk Ship October 03, 2007
by BennyKoops June 29, 2016