What is the definition of word buttom according to urban dictionary?

The definition of "buttom" according to Urban Dictionary is:

A large, round, fleshy protuberance on the female body located between the waist and the thighs. In scientific terms, it is the region on the posterior aspect of the body known as the gluteus maximus. Buttom can be used as both singular and plural.

Example 1:

"Her buttom was so big, it filled out the seat of her jeans perfectly."

Example 2:

"The buttoms on those girls at the beach were so distracting, I couldn't focus on anything else."

Please note that this definition is based on user-generated content and may not reflect the general or standard usage of the word.