1) any man with a huge black dick even though he is Caucasian.
his dick must be so immensly large you cannot see from one end to the other, thats the only way to be a shuxy.
2) The name for a man who is a shuxy
yair- "did you see that dude yesterday? he must have been a shuxy"
Max- "Holy crap shuxy is coming!, clear the road!"