clamjouster 

A lady, often but not uniquely, of Catholic education who engages in the time honoured Girls' School pastime of clamjousting. It is the noble martial art of clam-to-clam combat, where one girl grinds her clam against her opponent's. (aka Tribadism)

The collective noun is 'TILT' (From the medieval tournaments consisting of a number of jousts.)
"A tilt of clamjousters"

See also: boxgrazer, dieseldyke, mingeeta, rugmuncher, WRAC.

"That dorm has seen so much clamjousting the matresses squelch with fannybatter"

clamjouster by Cutaway August 17, 2004

clamjousting 

this is when two females engage in performing the act of running at each other, and jumping from about one meter and a half apart while trying to cause the clitoris or other parts of the vagina to connect in a sexually satisfying way

clamjousting similar to super market jousting without the trolleys and two women wearing no clothes instead

also see female clam.

clamjousting by junior, snowboard June 29, 2006

Clamjousting 

is when two women who participate in the Medieval sport of jousting, utilizing their vaginas in places of the lances (jousting rods).

The bitches at the stip club decided to host a clamjousting tournament to win the grand cash prize!

Clamjousting by ASonic October 14, 2019

Clam jouster 

Used to describe a lady who likes ladies, derived from the act of rubbing their pussies together.

Paula was a right clam jouster

Clam jouster by Funky the Monkey April 22, 2006

clam jouster 

A Lesbian

Did you know that she is a clam jouster

clam jouster by Rob October 31, 2003