adj. With the playful, innocent, eager to please or energetic qualities of a puppy.
the GNU version of the Collaborative International Dictionary of English
adj. Like a puppy.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. characteristic of a puppy
Word Usage
"The jokes worked well, the earnestness of the math student Hal came through as a puppyish eagerness that made it seem like he didn't know most of it was funny, which only added."