From Longman Dictionary of Contemporary Englishthis/that puppythis/that puppyAmerican English spoken informal used instead of the name of a thing, especially when you do not know the name How do you turn this puppy off? → puppy
Examples from the Corpus
this/that puppy• Use the lane and follow that puppy, that glove, up the road ta where it come from.• How do you shut this puppy off? 