Boston terrier

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A dog of a small breed that originated in New England as a cross between a terrier and a bulldog, having a short muzzle and a smooth, brindled or black coat with white markings.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun small pug-faced American terrier breed having a smooth brindle or black coat with white markings