look up any word, like pussy:
 
1.
1. A poisonous spider.
2. A disingenuous woman who exploits her position in a relationship to the detriment of her partner.
3. In the conflict between Russia and Chechnya, a Chechen widow whose husband died at the hands of the Russians and who consequently becomes a terrorist, usually a suicide bomber, herself.
Example of #3: Authorities found that several of the terrorists involved in the Beslan school massacre were so-called "Black Widows."
by Sam Sundquist November 01, 2004
 
2.
A woman who wraps her legs around the midsection and squeezes the shit out of her mate so that his attempt to pull out before orgasm fails and the man blows it inside the woman's vagina.

Often a black widow executes this movement during ovulation to hook her mate with a pregnancy bit. When this is the case, generally the black widow evolves into a baby momma
Dude 1: so, did you spiderman her or jeff or what?
dude 2: no bro, that bitch is a black widow. I hope she doesn't come up plump in a month and turn momma on me.
by Tranzilla August 30, 2006
 
3.
A female who feeds off of the mental, physical and material means of a male and then leaves him for dead.
A woman who sucks the life out of a male just like a black widow spider does, and then kills him after having her way with him.
by Psychological writer December 10, 2011
 
4.
1) Latrodectus Hesperus, the western black widow spider or western widow, is a venomous spider species found in western regions of North America. The female's body is 14–16 mm (1/2 in) in length and is black, often with an hourglass-shaped red mark on the lower abdomen. The female can secrete a neurotoxin which can be fatal (especially to children and elderly). The male is harmless.

2) Black Widow (Чёрная вдова, "Chernaya Vdova") (Natalia Alianovna "Natasha" Romanova,1 also known as Natasha Romanoff) is a fictional character, appearing in comic books published by Marvel Comics. Created by editor and plotter Stan Lee, scripter Don Rico, and artist Don Heck, the character first appeared in Tales of Suspense No. 52 (April 1964). The character was first introduced as a Russian spy, an antagonist of the superhero Iron Man.

3) A prank in which the prankster (typically male fraternity member) pulls down his pants, spreads his butt cheeks and places his butt-hole on the nose of an unconscious friend (or nemesis) who has typically drunk himself into such a stupor he does not respond and is photographed multiple times in this toxic position. The name black widow references the black body of the spider represented by the prankster's poop filled butt-hole and and the dark legs of a black widow represented by the prankster's dark wispy butt hairs splaying in all directions on either side of the nose of the black widow's victim.
Example of a black widow:
Person A passes out laying on his back...nose erect and exposed
Person B approaches, giggles, shimmies down his pants, giggles again...spreads butt cheeks apart as far as possible to expose the black/pink bellied body of the black widow, then person B sits on person A's face so that person B's butt hole fits snugly over the nose of passed out person A. The butt hairs from person B naturally fall on the face of person A..splaying across his cheeks like the legs of a black widow...
by doctorbone December 11, 2013
 
5.
verb. (to black widow someone)
To break up with a guy right after he orgasms during sex. This is the point where a guy is the absolute most sensitive and is the most likely be the most hurt by it. (This is assuming you are already having sex with him.)
Jess: "I think I'm going to break up with my boyfriend tonight"
Julia: "Hey, you should black widow that douche nozzle!"
Jess: "Yeah, I bet he'll cry if I break up with him right after sex"
by brodyboy March 19, 2011
 
6.
1 - a poisonous spider of the <i>Lactrodectus</i> found prdominantly in california.

2 - a kick ass acid/prog rock band from the UK in the late 60s/early 70s
1 - lay off the grapes, they found a black widow on one of them today.

2 - black widow where known for there songs - Come to the Sabbat, Sacrifice, Attack of the Demon and in ancient ways. Rock On \m/
by Brother Number One August 29, 2005
 
7.
When a girl shits onto a guys face and then sits on it, smearing it over his face and possibly into his mouth. While she does this she punches him in the stomach, leaving painful bruises and him half dead.
He was left lying in the street after she black widowed him.
by Sunset Salamander March 29, 2011