yap

noun5

1. •
   The high-pitched bark of a small dog, or similar.
2. •
   (slang, disapproving) The mouth, which produces speech.

   • Shut your yap!
3. •
   (slang) Casual talk; chatter.

   • They couldn’t rise above their calls for peace. Those who weren’t “defenders of the fatherland” were incapable of anything except yap and blather about “stopping the war.” — 1989
4. •
   A badly behaved person, especially a child.
5. •
   (slang, old-fashioned) A fool.

verb3

1. •
   Of a small dog, to bark.
2. •
   (slang) To talk, especially excessively; to chatter.

   • You’re always yapping, I wish you’d shut up.
3. •
   (slang) To rob or steal from (someone).

   • Ante up! Yap that fool! — 2000

noun2

1. •
   An island of the Caroline Islands, western Micronesia.
2. •
   One of the four states that composes the Federated States of Micronesia.