OH 

An original hippie like an OG (original gangster). Not a fake hippie who condones violence and says their part of the "family". Prefers to promote peace and envirmental causes.

He's an OH he sells drugs to make people happy and isn't concerned with making money.

"Wow that's allot of pot you got growin,you Gunna be rich"
--"nah I'm just Gunna smoke and share it all"
" ah..OH style"

OH by Jasminepeach August 23, 2012

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)

OH by Murray Jason March 30, 2008

OH 

no real definition just said in a reflex phrase
such as:

oh damn!
or
Oh shit!
etc.

OH by why do you need to know April 10, 2006

OH 

the noise a lady makes in bed

oooooohhhhhh yes yes harder harder

OH by Shibby September 20, 2003

Oh 

It actually means my heart just got ripped into a million pieces but I won't tell you because you wouldn't care how I feel anyway.

Elizabeth: I love you.
Isaac: I know that but I'm not ready for it yet

Elizabeth: Oh.
Bystander: That's harsh.

Oh by 5secondsofserenity June 28, 2014

OH 

You have to almost shout this 'word'.
italians use that for many reasons, such as:
1. Anger
2. Greetings
3. to draw someone's attention

(also used lonely)

and other reasons i don't feel like listing.

1. OH, wtf are you doing with my phone?
2. OH, dude, how r u doin'?
3. OH, are you listening to me, man?

OH by imdafuq August 16, 2017

Oh 

What you say when you just received sad/troubling information and your world is falling to pieces but you can't describe it.

-I have a girlfriend, sorry
- Oh.

Oh by Lucky Haze November 5, 2017