[1] : The Collaborative International Dictionary of English v.0.48

pooch \pooch\ n.
   a dog. informal
   pjc

[2] : The Collaborative International Dictionary of English v.0.48

pooch \pooch\ v. i.
   to round one's lips as if intending to kiss.

   syn: pooch out.
        wordnet 1.5

[3] : WordNet (r) 2.0

pooch
     n : informal terms for dogs syn: doggie, doggy, barker, bow-wow
     v : round one's lips as if intending to kiss syn: pooch out
see also:
doggie doggy barker bow-wow pooch out 

[4] : Moby Thesaurus II by Grady Ward, 1.0

24 moby thesaurus words for "pooch":
   seeing eye dog, bandog, bitch, bowwow, canine, dog, fancy dog,
   guide dog, gyp, hound, kennel, lap dog, pack of dogs, pup, puppy,
   sheep dog, show dog, sled dog, slut, toy dog, tyke, watchdog,
   whelp, working dog

Pooch >> P Words
Pooch, definition of term: Pooch
pooch_pag1.html