Clam Stamp 

When a female sets her genitals on a person's forehead; commonly performed after the receiver has passed out. This event is often photographed and used for future embarrassment.

Opposite of the mushroom print.

Yo....Christopha passed out and got hit with a clam stamp form Tammy. He's going to shit when we show him the pictures.

Clam Stamp by Mr.Reno May 3, 2007

Clam Stamp 

The Female equivalent to "T-Bag"
A gaming term used when humiliating an opponent by crouching up and down on there dead pixilated body.

Dude I was playing Black ops last night and this chick clam stamped me after she no scoped me.

Clam Stamp by DeathTemptress May 4, 2011

clam stamp 

When a female on her period presses her bloody vagina to a persons forehead.

I woke up this morning only to see a clam stamp on my forehead.

clam stamp by The real Finger June 8, 2009

Clam Stamp 

To gently place your vagina on you sleeping partner's forehead in an effort to leave a short-term, sloppy impression. When your unsuspecting guest identifies the smell and warm sensation on their forehead you say, "You've been stamped!"

Like a snail, Lynn mounted John's head and left a wet, sloppy clam stamp.

Clam Stamp by Lady Godsmack September 5, 2010

Clam stamp 

A physical gesture consisting of a person creating a vagina with his or her hands by connecting the index fingers and thumbs in an extension while the other fingers are clenched as in as fist. Then thrusting this hand formation forward quickly so as to place a stamp. This stamp is bestowed upon those who willfully exhibit weak and otherwise un-manly or "pussy" actions

That guy just got dragged out of the bar by his wife. Lets clam stamp his forehead!

Clam stamp by Falcon 2012 January 7, 2012

Clam Stamp 

When a Woman presses her damp clam on your pants and lives a clam imprint (clam stamp)

"Dude that stripper left a clam stamp on your pants"

Clam Stamp by sirstampsalot August 7, 2020

Clam Stamp 

The act of slapping another with your vagina. Usually done in retaliation to a mushroom slap of some sorts. Usually a sticky mess.

"Stina really showed her boyfriend who's boss last night, she clam stamped Danny all over the face! See if he ever fadunks her again!"

Clam Stamp by pussypunch December 22, 2009