I. yap 1 /jæp/ BrE AmE verb ( past tense and past participle yapped , present participle yapping ) [intransitive]
[ Date: 1800-1900 ; Origin: From the sound ]
1 . if a small dog yaps, it ↑ bark s (=makes short loud sounds) in an excited way
2 . informal to talk in a noisy and annoying way:
Some guy was yapping on his cell phone.
II. yap 2 BrE AmE noun [countable]
the sound a small dog makes when it yaps