The most homo pansexual around.
If you’re male you better clench because he will take your cheeks faster than you can moan.
If your name is Nick than you have already experienced the Gud succ succ.
If your name is Tad... than you’ve given the succ succ
Rio: Nico gimme them cheeks boi.
Nick: Not if I take yours first.
Tad: Hey guys let me join!
Derek: *Pulls out gun* Everyone get on the ground at spread your cheeks.
Tad Rio and Nick: Yes Daddy!
by Ur mum gay 6ix 9ine December 11, 2018
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A Rio is commonly used when labelling someone or something that is mentally, but often physically, retarded, misshapen or delayed.
Oh look that guy walks funny... what a rio!
by MitchAaAaY September 22, 2008
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A type of airhorn used to relay messages instantly.

Also a boys name.
I need to spread a rumour instantly, think ill use the Rio.
by larksmeistergeneral July 11, 2008
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A boy who is a complete and total ass. Likes to get stoned, party, fight and ride motor bikes. Usually is a player, and will cheat on any girl and every girl. Also tends to be a huge source of drama. Often asks females for topless picture on his cell phone. He wont take “no” for an answer and tends to harass you. Rios are also usually compulsive liars and will tell you what ever he thinks you want to hear. A Rio may also be used to describe a guy who dated a girl until she cheated, then took her back and knocked her up.

Remember never trust a Rio.
"Dude I cheated on Sarah"
"DUDE! THATS SO RIO!"

Boy:"Heyyy, can I get a pic ;"
Girl:"No, sorry hun. I got a man"
Boy:"Come on i want one really baaaad. And im better"
Girl:"Your being such a Rio"
by Jay720 January 8, 2009
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A heavy menstrual period that requires numerous absorbent pads and tampons; a very heavy menstruation; menstruation
Woah, my rio was so bad, I needed a super plus tampon and an overnight pad!

Her time of the month is upon her so beware of rio!

Rio was like the Rio Grande!
by Clare Schmare September 12, 2011
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A real broski that is the king of being a girl magnet. He has best name in the world and is rah just funny. Hes fast good at football and talented. If you know a rio stick with them till you die.
my bro rio
by Bigshotz069 February 6, 2020
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Rios is a word
by Dab on Rios November 28, 2016
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