A string of noises emitted by retards when attempting to say "Hello".
A Homie: Yo yo yo, whaddup ma nigga.
Me: Shut the fuck up before I shoot you in the head (again).
by Spatter Artist February 20, 2006
a childs toy used for amusement in an up and down motion, capable of performing tricks
yo my homie bro, thinks are totally wack... have u seen my yo yo??
by Tom Barrett October 29, 2003
When you're trying to hold back a monster sized shit and it keeps pushing its way out; followed by you pulling it back in.
Dude you have got to pull over! I've got a serious yo-yo going here.
by Hu Jia September 21, 2004
another way of saying wassup, or hi
"ey yo dawg how u been?"
by Diamond Princess April 5, 2003
Term used in the early 20th century to refer to homeless people traveling back and forth on Subway trains for the day. Traveling back and forth with no purpose but to take up time. Used extensively in the novel V. by Thomas Pynchon.
I had no where to go, so I spent the day yo-yoing.
by V............. September 20, 2011
a seemingly psychotic person who expresses him/herself through insane stunts.
"Did you see that yo-yo jump that truck holy shit!"
by N!NJ4 April 29, 2005