clamjam 

the female version of "cockblock"

Beth moved in on Brian when Megan was trying to hit on him; it was a definite clamjam.

clamjam by Sydney Banks May 28, 2006

Clamjam 

Semen dripping from a vagina

That clamjam makes her vadge look like it has a cold

Clamjam by WiseRook October 6, 2015

Clamjam 

A new age cover band in central Minnesota

Hey did you see Clamjam last night at the Fineline?

Clamjam by Mumbo Jumbo dos February 7, 2013

ClamJam 

A party of only girls (or at least 80% ladies), where there is a substantial abundance of the clam.

Jane invited her friends to a party that will "surely involve copious amounts of penis" Upon arrival her female friends find a ClamJam: an abundance of women, Bitch Drinks, chick flicks, and not a single sausage in sight. Bad form Jane, bad form.

ClamJam by Pardz Bru October 28, 2010

Clamjam 

The female of the species uses a variant of the male cockblock known as the Clamjam.

First of all Cindie, you totally Clamjammed Becky at Fridays party.

Clamjam by Whiteboy B February 27, 2019

ClamJam 

Lesbian sex. Specifically scissoring

*in dyke voice*
"hey baby, you wanna go clamjam😉"
"Hey sorry I was late to our meeting, I was clam jamming my girlfriend"

ClamJam by Gvnggvng February 22, 2020

sister clamjam 

The act of performing oral sex on a female friend, when you yourself are a female.

Similar to a brojob, but for girls

"Hey bro did you hear about Sally and that whore Hannah?"

"Yeah, I heard they sister clamjammed"

sister clamjam by Kastaling October 10, 2016