to leave a streak of shit on somebody by spreading your butt cheeks and sliding down.
God, yesterday i was so drunk that i did a 50-50 grind on my friends thigh. He wasn't happy.
by JohnnyDilf June 10, 2017
Get the 50-50 grind mug.
To be bisexual and equally attracted to people of both genders, rather than leaning more toward one or more toward the other.
My girlfriend is 50/50 bisexual.
by cdk1130 March 10, 2007
Get the 50/50 bisexual mug.
When a girl gently plays with a mans balls, even sucking on them, then at the spur of the moment, when a guy is errected, she pulls his dick, as if she wanted to rip it off and chew on it ferrociously. When saying 50, one must make their voice very deep and masculine compared to the rest of the sentence.
Guess what pat and mauyvaline did this weekend? 50.
When Mary and Pat where getting busy, she 50'd him, and that is why it is hard for him to walk today.
by 25+25= 50 May 26, 2007
Get the 50 mug.
Reddit 50/50 cured my depression

Person 1: Hey man did you go on Reddit 50/50?
Person 2: Yea man, I'm no longer playing games!
Reddit 50/50: If you have depression this is the best way to cure it. Yes, even better than memes.
by Mathelgar January 15, 2020
Get the Reddit 50/50 mug.
Is moving the Earth for her…
He can’t get enough…
She’s..
50..Loved so much
by Wanderlust_721 September 2, 2023
Get the 50 mug.
Anytime you have a 50-50 chance of getting something right, there's a 90% probability you'll get it wrong.
When flipping a coin, take into account the 50-50-90 rule,most likely you'll be wrong.
by SonicWolf January 18, 2009
Get the 50-50-90 rule mug.