bog beast 

extremely ugly woman resembling something that lives in a swamp

that girl you were with last night was a bog beast

bog beast by spook April 15, 2004

Bog Beast 

A bog beast is an old fashioned term for any kind of creature that can live in a swamp.

Louisiana is full of all kinds of bog beasts; including alligators, fish, even butterflies.

Bog Beast by Dr. Portmanteau February 9, 2021

Bogbeast 

A really ugly girl or woman usually a bit rough or scary looking with bad or disgusting habits. i.e. fanny scratching public farting bogie flicking etc.

The bogbeast put me off my food with her boot ugly boat race (face) and the continual scratch and sniffing of her own rank muff.

Bogbeast by Bogbeast August 31, 2011