Dirty Snowball  

When a guy cum's into a females ass and then she squirts it into her hand and throws it at him.

After Busting a load in Monica's ass she popped out a dirty snowball and threw it at my face!

Dirty Snowball by GTG Crew December 30, 2008

Snowball Impregnator 

This is a slightly convoluted way to become impregnated if the female hates vaginal penetration. The female fellates the male and performs the well known 'snowball', spitting the semen into the male's mouth. Quickly, so as not to damage the sperm by over exposure to oral acids, the male then spits the semen into the female's vagina, thrusting it inside with his tongue.
If this technique is part of a prolonged sex act, then creampie or cunnilingus maybe part of the immediate following proceedings.

Childless Chap: My wife just hates it in the puss and in the bumhole, but we're trying to get her pregnant. She's also limbless and hates hospitals. And get this: she also had a very scary experience with a turkey baster as a child, how're we ever gonna get her up the spout?

Empathetic Chum: Perhaps you could try the old snowball impregnator?

Snowball Impregnator by Phthalo Blue March 10, 2011

end-of-semester snowball phenomenon 

The tendency for hw, projects, tests, etc. to occur with disproportionate frequency in the final weeks of a semester.

You thought high school was tough, wait 'til you experience the end-of-semester snowball phenomenon in college.

end-of-semester snowball phenomenon by 4eggSAMple April 15, 2009

Aberdeen Snowball 

The act of your Blowing a load into your girlfriend or wife's mouth during oral sex. Then the girlfriend or wife transfers the load to the asshole that was hitting on her all night at the party, The very asshole that also managed to pass out at yours or her house. Completion of the Aberdeen Snowball is when said victim and Asshole is told in the morning what happened.

"Mike was hitting on Lacey last night, so after he passed out she helped me give him an Aberdeen Snowball. "

"There's nothing better than informing someone that they received an Aberdeen Snowball last night!"

Aberdeen Snowball by Scuba Steve 2-146th June 28, 2012

louisiana snowball 

Having someone give you a blowjob with Hot Sauce in their mouth and then spitting the ejaculate in your face.

My girlfriend just gave me a Louisiana Snowball and my face is on fire.

louisiana snowball by Irish71 May 27, 2014

Snowball in hell 

Snowball in Hell is not only a very fine song by They Might be Giants, it is also a phrase, although a very seldomly used one, that basically means no chance. Since the TMBG song was released, it's become more commonly used in work situations. (See example 2)

Damn. I've got as much chance to pass this test as a snowball in hell.

I know this new "Consultant" asshole is gonna get me laid off.... I feel like a snowball in hell.

Snowball in hell by Catboy May 18, 2006

baltimore snowball

It's when one person stands on a balcony and ejaculates over the side while another person on the ground catches it either on the face or directly in their mouth.

I gave my landlord the Baltimore Snowball because she raised my rent $25.

baltimore snowball by Gabby Hayes February 5, 2014