bumperstumper 

1 a slang term for a woman with an oversized ass that makes coutise impossible from the doggy position impossible

Man she had a bumperstumper from hell I could only get the head in from behind.

bumperstumper by Volk2019 March 6, 2019

bumper stumper 

bumper stumper is when a person releases a burp so loud it makes your mom queef spaghettios out of her asshole

I made my mom cry when I released that bumper stumper.

bumper stumper by RadNotRed February 15, 2022