Jam the Clam 

To put your boner into a girl's clam and rock that shit sideways

The act of jamming up a girl's clam with... Jam?

Mitch totally wants to jam the clam! Bruh

Jam the Clam by Jax0322 October 2, 2015

Prepare for a jam with the bearded clam 

A chicago saying for telling your friend to eat that chick out.

"She is such a slut!!!"
"prepare for a jam with the bearded clam, man!"

Prepare for a jam with the bearded clam by Johnny Toast December 4, 2009