1. A particular
individual who sits around all
day gaining weight, and who is moronic. From the latin
root, fattius oafius.
2. President Taft.
You: Yo,
Joe, did you see Jerry at McDonalds the other day? That fatty had to use his inhaler after every bite.
Joe: Yeah, what a
fat oaf.
Or
You: Oh my God, that is one ugly walrus in that picture.
Other guy: That's not a walrus, it's just President Taft's baby picture.