an emoticon which can either indicate yelling, screaming, general pissiness or anger.
Something someone says when they're too lazy to type "Oh".
Person 1: Sorry man I can't go to your birthday.
Person 2: O
Trinity's favorite thing to type in every sentance
Me: hahaha real
Trinity: o-o fr fr
Batman: Thanos could you please do a fish face?
Thanos: o _ o
Batman: *makes a photo*
Batman: Haha, I will upload it to the internet!
Thanos: *snaps*
The universe: ᑯᒥᓂᕿᐃᑭᓯᔨᒡᑭᒧᕿᓄᑲᕿᑭᔾᔨᒧᓪᖅᓂᑭᑎᓯᔾᒃᑲ