Vein Drain 

An unfortunate and potentially traumatic experience which occurs when a heterosexual male is masturbating to a porno flick, and notices that the porno flick is about to enter the money shot scene. The masturbator furiously races to match the timing of his ejaculation with that of the porn star's facial spray onto the cum-craving whore. However, just when the masturbator is about to climax, the scene inexplicably cuts from the gaping whore to a close-up of the porn star's sweaty face as he is jizzing. As a result, the masturbator ends up draining his willy to the porn star rather than the cum slut, leading to a deeply unpleasurable orgasm, severe long-term emotional stress, and a dark era in the masturbator's existence as he questions the meaning and purpose of life. The porn star's face is generally accented by a visible vein popping from his beefy forehead, hence the term Vein Drain.

Dude, I was jerking off to "Butt Fuck Sluts Go Nuts Pt. 9" last night, but just as I was about to erupt in sludge, the camera cut to the roid-head, leading me to vein drain. I have decided to leave all my belongings to you in my will.

Vein Drain by Joey the Grip June 20, 2009

drain a vein 

When you go to "take a leak."

Man...I drank so much beer that if I don't drain a vein now I'll explode.

drain a vein by earlofduke February 4, 2010

two can drain that vein 

Just as two can play at that game, two can drain the vein of one's backed up semen.

Buffy: "Did you hear Lance challenged that more than one Ho is needed to make him climax?"
Candy: "Oh really? Two can drain that vein!"
Buffy: "Game on!"

two can drain that vein by GlazeHer April 26, 2014

Drain the Vein 

To release a large amount of urine on somebody's face.

Be right back bro, I need to drain the vein.

Drain the Vein by The_Last_Black_Man October 3, 2010

Drain the main vein

Slang for "Urinate"

"The Main vein" being the penis of course.

"I gotta drain the main vein something fierce"

Drain the main vein by Doc Evil July 24, 2003

drain my main vein

to piss (=

i'll be right back guys i gott go drain my main vein

drain my main vein by dongsaucer (= October 30, 2008

To drain the main vein 

Expression: for guys to take a piss.

I need to drain the main vein...like right now. Is there an industrial area where I can do it on the street?

To drain the main vein by Uncle Dimma July 26, 2025