by larksmeistergeneral July 31, 2008
Get the Riomug. 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.
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"
"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 7, 2009
Get the Riomug. 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!
Her time of the month is upon her so beware of rio!
Rio was like the Rio Grande!
by Clare Schmare September 12, 2011
Get the Riomug. 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
Get the Riomug. 
by Wlilow March 29, 2022
Get the Riomug. 