O-

One of the rarest forms of blood type among humans. A Universal donor.

O Negative
Blood type is very important because it can potentially be transfused to any patient regardless of their blood type. In emergency situations, when there isn’t enough time to determine a patient’s blood type, O negative blood is often used.

Best blood type to donate:
O +, O - (i.e. Son), B-, A- (i.e. ME) RH-
Only about 7% of all people have Type O negative blood
Type O negative blood is the preferred type for accident victims and babies needing exchange transfusions
There is always a need for Type O donors because their blood may be transfused to a person of any blood type in an emergency

O- is Universal donation for the masses. What is yours?

by KWatlonTyUniverseal April 18, 2010

o(-. -)o

music

it is someone with headphones on listening to music and enjoying it.

o(-. -)o: don't bother me i like this song.

by myfirstdeadpanda July 17, 2008

:o :o :o

A Triple Headed Shock Monster, also known as a THSM. A set of emoticons expressing extreme shock.

John: I killed a man again!
Abe: :o :o :o
John: Yeah... what?

by DaveyJones December 31, 2009

o////o

An emoticon used to indicate the person is blushing, embarassed, etc.

person 1: zomg, do you really like him?!
person 2: um.. o////o

by dfskdshjdsahdsa April 13, 2006

o(╥﹏╥)o

A face used to show the sad emotion.

From Janet: o(╥﹏╥)o

From Chad: Rough day?
From Janet: mhm

by googlyeyes77 April 28, 2018

o^o

The o's represent eyes and the '^' is the mouth, basically this is an emote used to show derpiness and quirkiness, or a bird.

Person1: Wanna go to a bannana fight for the penguins?!
Person2: o^o Lolwut
Person1: o^o indeed

by Reeeeaper July 6, 2013

O=(^_^)=O

Hug emoticon.

Hug? O=(^_^)=O

by Skelwor June 15, 2009