Definition of "yap" in English

noun

1. (countable) The high-pitched bark of a small dog, or similar.

2. (uncountable, slang) Casual talk; chatter.

3. (countable, slang, derogatory) The mouth, which produces speech.

   • Shut your yap!

4. (countable, Geordie) A badly behaved person, especially a child.

5. (dated, slang) A fool.

verb

1. (intransitive) Of a small dog, to bark.

2. (intransitive, slang) To talk, especially excessively; to chatter.

   • You’re always yapping, I wish you’d shut up.

3. (transitive, slang) To rob or steal from (someone).