Muddy Clam 

Performing oral sex on a girl while she is on her period.

My girl loves it when i give her a Muddy Clam!

Muddy Clam by jstwnbby34 November 22, 2011

mudd clamming 

When your girls ass so fine you don't mind eating her pussy from behind knowing your nose will be directly in her shitter...

Man, after "mudd clamming" her pussy , I had to wipe the shit off my nose...

mudd clamming by JohnsonSwellz May 29, 2016