yap away vs verbalize

yap away and verbalize both are verbs.

Word	Noun	Adjective	Verb	Adverb
yap away	No	No	Yes	No
verbalize	No	No	Yes	No

As verbs, verbalize is a hypernym of yap away; that is, verbalize is a word with a broader meaning than yap away:

Other hypernyms of yap away include mouth, speak, talk, utter, verbalise.

yap away (verb)	verbalize (verb)
talk incessantly and tiresomely	convert into a verb
	express in speech
	be verbose
	articulate; either verbally or with a cry, shout, or noise