2. Slang. to talk noisily and foolishly or complainingly.
1. a harsh cry.
2. Slang. a. raucous or querulous speech. b. a noisy, foolish utterance.
You don’t yawp to God. Bach doesn’t yawp to God — Marc Estrin, Golem Song, 2006
I too am not a bit tamed, I too am untranslatable, I sound my barbaric yawp over the roofs of the world. — Walt Whitman, Song of Myself, 1891
Yawp is a very old English word. It entered English in the 1300s and comes from the Middle English word yolpen. It is related to the word yelp. Walt Whitman popularized the noun sense of the word in his book Song of Myself.