Dictionary.com
Thesaurus.com

yaff

American  
[yaf] / yæf /

verb (used without object)

Scot. and North England.

  1. to bark; yelp.

Etymology

Origin of yaff

1600–10; perhaps blend of dial. waff bark and yap or yawp

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.