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1. oh
something one would say to show how much they really don't care
-omg my dog got hit by a car today, my teacher slapped me, and my boyfriend broke up with me!
-oh
by veggieness Apr 5, 2005 add a video
2. oh
A way to reply to a statement when you can't think of anything good or helpful to say back.
-I think im going to fail out of college and have to move back home.
-oh
3. OH
the noise a lady makes in bed
oooooohhhhhh yes yes harder harder
by Shibby Sep 20, 2003 add a video
4. oh
the word that is exclaimed by pretty much everyone on The Sopranos.
Waiter: "You fucking asshole"

Paulie walnuts: "OHHH!"

*waiter gets whacked*
5. OH
Acronym in <textspeak> for "overheard."
OH: "that's a great new skull fuck jacket you just got!" "I know! Right?" (from twitter.com, 30 March 2008)
6. OH
no real definition just said in a reflex phrase
such as:
oh damn!
or
Oh shit!
etc.
7. OH
"Other half." Used to call your husband/wife, gf/bf, anyone you consider to be your "other half" to complete you.
The OH has finally approved of us raising a dog!
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