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sperm jack 

To commit forcible theft of sperm.
After Jane, sperm thief extraordinaire, handcuffed John to the bed she proceeded to jerk him off in order to extract sperm. When he climaxed she put the sperm in a small container, got dressed, and left. John was sperm jacked!
sperm jack by J-Fad December 15, 2008

sperm-jack 

The process of taking someone's sperm and using without their permission
Kathy is trying to sperm-jack Paul so she can have a baby on her own.
sperm-jack by Lorcán000 January 14, 2009

Sperm Jacker 

A female whom steals sperm from a genetically superior and unsuspecting male victim in order to produce an offspring to improve ones family genes.
That Sabrina was one heck of a sperm jacker
Sperm Jacker by DaTruth2009 August 30, 2009

jack!sper 

A name used to refer to the combination of Jasper Hale (from the Twilight series) and Jackson Rathbone, who plays Jasper in the movie Twilight. This term is specific to the movie character, as opposed to just Jasper, or just Jackson Rathbone. Often the word is misspelled due to omission of the exclamation point.
Did you see paparazzi Jack!sper in the new MTV Twilight interviews?
jack!sper by PlanxtyLewis April 14, 2008

Spermjacking 

Term used to define the involuntary collection of a man's sperm, generally comitted by females who desire to have a child with a male with no such desire.
"Kitty was totally caught spermjacking George Senior, that bitch. She was worried that his new hair growth medication would render him sterile."
Spermjacking by Divisionbear June 23, 2009

spermback 

when you blow your load on to a girls back
As you’re about to cum you pull out and spermback your ejaculate all over the person’s backside
spermback by SMWJLA Partnerships October 20, 2007
More from Urban Dictionary

piddlefart

verb. To waste time doing nothing.
Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
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