The 50-50 is a very mutual and sexual act performed by two people. To perform the "50-50" you will need to have a tub of Nutella and an anus. Scoop out a reasonable amount of Nutella onto the finger and insert into the anus. Allow 5 minutes rest and then with your tongue, lick inside the anus. There is a "50-50" chance that poo or Nutella will come out.
"Hey mum, can I 50-50 with the Nutella this week?"

"Hey babe, I was wondering if I can 50-50 you tonight?"

"The last time I 50-50'd someone I got poo on my tongue!"

"I'm not too hungry tonight. I might just have a 50-50."
by Mclanky Andrew November 3, 2013
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when having sex to half cum inside the girls cooter pull out and then unload the rest on her body
don't 50/50 me its horrible.
by just call me alias December 6, 2009
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When a woman give a man a hand job but with her feet
dude you know that chic from the bar yeah, well she 50-50'ed me under the table last night
by Collin Danaher March 30, 2006
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Game played when you are unsure if you're going to fart or shit. The probability is usually equal.
If you pull my finger, we'll play 50-50.
by Joel TK May 25, 2005
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A joint that is rolled up with about half weed and half tobacco. It makes the smoke much more light and easy to get a good smoke if you don't have a lot of green left. Note: 50/50s get you higher than you may think.
Yeah, we rolled a 50/50 and smoked it as we walked to our intramural soccer game.
by Major November 25, 2004
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A non gangster by involved in gang s###
a non affiliated hinging with real "Gs" is called a 50/50.
Or in graffiti drawing to show that it done by a non-affiliated, it on some where near the drawing they did.
by mr. mexican thug July 8, 2009
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A strategic move when you shave have of your mustache to clean anothers ass. It works when the hairy half brushes the feces onto the shaven side. This leads to the perfect combination of a babies asshole and a Obama Bin Laden's face. Then they proceed by licking the leftover feces and digesting it. Also known as the Swiffer Sweeper.
I wish my man would do a "50/50".

Never thought a man with a "50/50" could be so attractive.
by VisualistTV December 16, 2018
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