n. a wimp; a softie. : That silly puppy is still waiting outside your door.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
Cite This Source
1486, "woman's small pet dog," from M.Fr. poupée "doll, toy" (see puppet). Meaning shifted from "toy dog" to "young dog" (1591), replacing M.E. whelp. Also used about that time in sense of "vain young man." Puppy love is from 1834. Puppy fat is from 1937.