n. A dog bred from a Boston terrier and a pug.
Pugs can make bugs (with a Boston terrier) or puggles (with a beagle).
When a male pug is bred to a female Boston terrier, the result is a "bug," pugston, or mini-boxer. They can be tan with black muzzles and can be brindle or black/white.
A Boston terrier and a pug? That's a bug.