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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?
O- by KWatlonTyUniverseal April 18, 2010
Related Words
oof Olivia Owens oliver oscar Obama OK otp ohio oreo
A very surprised smiley face
O: by Linkzie June 29, 2006
"I've missed my period."

" :{O "
:{O by SF Vega September 19, 2009
a picture of a cheerleader. arms holding pom-poms and head.
go team! *\o/* go north! let's go cheerleaders! good luck! *\o/*
*\o/* by melissa h October 30, 2006
An chat emote used to express a variety of intense emotions, but most often frustration or anger. It can be used seriously, but often with a somewhat playful tone. It most likely originated as one of a few "flipping tables (out of rage)" emotes, and is still often used that way today, sometimes with the corresponding table: )O) ︵ ┻━┻
Sol: "So what kind of things do you like?"
Eima: "What do you mean?"
Sol: "idk, anime characters, foods, or something"
Eima: "Well I can see what kind of things you like."
Sol: "That's not what I'm asking )O) "

or

Lin: "I'M STILL LEVEL 34 )O) *rage quits*"
Sorciere: "Nooooo!"
)o) by SolRemedy April 12, 2015
Big E face when you either get a bad score on your test or your dumb.
Test: 32% 17/52
You: )'o'( )'o'( )'o'(
The whole classes test: 17/52 32%

The whole class: )'o'( )'o'( )'o'( )'o'( )'o'( )'o'( )'o'( )'o'( )'o'( )'o'( )'o'(
)'o'( by )'o'( November 11, 2019