When you put a large gauge needle in your forearm vein and pull the syringe out , leaving your vein open and a large stream of blood pouring down your arm.

You then proceed to masturbate with the blood as lubrication. You may only remove the needle after you cum.
can be done with both arms if you have a partner.
"sorry sir my son cant make class today, he was double leeching last night and lost a fair amount of blood"
by Mr Sister Fister February 05, 2015
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To infinitely rack up points in a video game with absolutely no skill.
by Anonymous May 16, 2003
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eating a girl/pussy out while she's on her period
Toby's mouth was covered in blood after leeching Stacey.

(Stacey was on her period, therefore by Toby eating her pussy, he got blood all over his mouth)

Leeches consume blood through sucking it, such as sucking and eating out a vagina excreting blood
by Wilson Duong May 27, 2008
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To copy all the porn of a fellow lanner at a gaming event :)
A11 j00r p0rn b3l0ngs 2 m3
by lee--ch--ing September 23, 2003
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