look up any word, like ebola-head:
 
2.
Alien species coming to earth with their nice pets (look for shitweasels")
oh, look this greyboy is having a walk with his shitweasel in the park!
by Michael Underwood April 30, 2003
 
1.
A male Homestuck troll
"Gosh! Tavros is such a cute grey boy!" Rose gushed.
by Tumblrina July 13, 2014
 
3.
I grey person that can blend in the wall.
Person 1- OMG you see danny? He was in the wall you could barely tell!
Person 2- Yea probably from all the WoW hours. Stupid Grey Boy.
by Teh Kevin February 06, 2008
 
4.
Teh Color grey, that someone is.
Grey boy is grey. So a grey color is grey
by K. Weezer February 09, 2008