An outrageously powerful slap delivered into the ear by the inside of one's bare palm. A loud slap is heard from across the room and the victim is usually left temporarily deaf, hence the name. The slap is preferably delivered after administering a droplet of spit into the palm and without the victim seeing it coming. It can be used as a verb in all tenses.
Noun: Ron Artest just gave that fan a mean deafazz.

Verb: Keep talking that smack and you'll get deafazzed.

smack, thump, slap, bitch-slap, bitchslap
by Toronto English Teacher February 15, 2011
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When you slap the absolute hearing out of their ear
Yo why you slap me so hard

I just gave u a Deafazz
by The dreasgth February 16, 2022
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