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

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.

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