1 definition by javamonk
An understudy, or assistant for your buddy. "Buddy", in this case, is usually an animal companion, i.e. a cat or dog.
Woman to man: I think we need an underbuddy, because the cat has been slacking off lately.
To a cat: Do you want a buddy?
To a cat: Do you want a buddy?
by javamonk December 11, 2003