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Oah is an expression commonly used when responding to a comment which results in utter shock or amazement, or if the comment is simply stupid. Often used with both a question mark and an exclamation point, oah is said as a mixture of what and oh.
"How was the hot tub?"

"Hot."

"Oah?!"
Oah by mguernsey October 18, 2009
Related Words
Something you say when someone says something sus.
Brayden Dwyer: Yooooo guys the marry maurader just came back out!!

Braden and Marcus: Oah
Oah by marcuslaz September 18, 2019
Open and Honest

Relating to a dialogue
"We need to have an OaH about where this relationship is going tonight."
OaH by Brave Bobby May 15, 2025
A badass youtuber that is better then pewdiepie SUB OR DIE TOMMOROW
xN_oah by Oof Oofington January 23, 2018

am oah in 

A derogatory term for Chinese people t is also ni hao ma meaning how are you
he is an am oah in
am oah in by Magicalboon March 13, 2025
Oh-wah-hoo
An Island in Hawaii full of Japanese tourists and people with 1 billion races. With Honolulu as its capital. Locals hate white people, even though the leaders are either Asian or white.
Ex #1: Guy 1: Hey where You from? Guy 2: Oahu Guy 1: OOwahee? Guy 2: NO OAHU!
Ex #2 Knock, Knock who's there Owa,Owa who?, Oahu, heh get it?, nvm
Oahu by MinesomeMC November 13, 2016