pup 
(pŭp)
(pŭp)n.
1.
a. A young dog; a puppy.
b. One of the young of certain other animals, such as wolves, coyotes, rats, seals, or sharks.
2. An inexperienced or conceited young person: a mere pup trying his first case in court.
intr.v. pupped, pup·ping, pups
To give birth to pups.
[Short for PUPPY.]