main vein

Penis.

Slang word for penis.

"Be right back, I'm gonna go drain the main vein".

"I drilled her with my main vein".

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the main vein

Penis

My bladder is so full I think its time to drain the main vein

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Main Vein

The largest vein in the penis. Once the penis has become erect, the blue/purple vein becomes clearly visible.

"Seeing that chick naked got me so hard that my main vein was just bulging!!"

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Main Vein

The large vein that travels the length of a cock. Instrumental in delivering blood from the central artery during erection.

My cock was so hard, my main vein was swollen with blood.

I saw my heart beat as the main vein of my cock pulsated with blood.

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Drain the main vein

Slang for "Urinate"

"The Main vein" being the penis of course.

"I gotta drain the main vein something fierce"

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Rail the Main Vein

To snort a line of cocaine off of a fully erect penis

Me: Yo, do you even rail the main vein?
12 year old on Xbox live: Yeah, fucker, I rail the main vein every day!

drain my main vein

to piss (=

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

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