A person who inhabits trashcans, poops in the yard (Wubby poop is often mistaken for dog poop), drinks cups of pee (a Wubby would consider such to be apple juice, as the Wubby is easily fooled), and rides razor scooters while being at least half naked (the lower half) at all times.
In determining a Wubby, you can also use 3rd party variables, such as members of it's family or household, including, but not limited to:
1. A fat mother
2. No father
3. A deaf brother or sister that fantasizes that he or she is part of an all female pop group, i.e. The SpiceGirls.
4. A soiled couch
I hate Wubby s, they're always popping out of trashcans when you least expect it.