A person that just sleeps on the couch all day and smokes weed. This person will also eat all of your food, and very rarely uses the restroom. They also have bad hygiene, and are usually Jewish.
This is the term used whenever something is done to someone in a harsh manner, whether it is playful or serious. A combination of the words, "got yo ass".
When you dunk on someone... "gotchoass"; When you prove somebody wrong..."gotchoass"; when you trick someone, hit someone, or anything else that excites you and upsets them..."GOTCHOASS"