D.O. 

Doctor of Osteopathic Medicine

Person A: "Are you doctor...an M.D.?"
Person B: "Yes, I'm a doctor, but I'm a D.O.!"

D.O. by ctak July 16, 2006

D.O. 

To punch someone excessively hard, breaking the top of their jaw with one swift move.

Kyle: *Punch to face*

Devin: *Face broken*

Crowd: "yo he got D.O.'d"

D.O. by spiderdude9 May 7, 2011

D.O. 

1. go crazy, to fight

2. to fuck a sexy female without her being a girlfriend

3. beat to death without a weapon (man-slaughter)

1. that girl went D.O. in the classroom

2. later on I'm going to take her to my house D.O. her

3. he got into a fight with his homie and straight D.Oed him

D.O. by 7~4~4 June 24, 2009

D.O. 

1. verb, D.O. = "douche out" (circa 1967-8) - to become intoxicated to the point of passing out.. 2)noun, D.O. - a place or party where such intoxications occur 3) adjective - incapacitated lethargic, stuperous

Example: No, man. I'm just gonna sit 'round the house and D.O. with Valery or Xandy.

Hey man, you wanna get D.O.'d with us?

I'm too D.O.'d to drive.

I dunno, I Haven't gotten D.O.'d in almost a month. I'd better n.... Oh, what the hell.

This is gonna be a classic D.O.!

D.O. by pygmy71 November 17, 2004

d.o. 

'Dick Out'. Typically occurs in Golf. This is the physical manifestation of 'eating crow' Talk shit about someone else's drive, then do worse yourself, you have to finish with your cock hanging out through the ol' trapdoor.

Eric made fun of his wife's drive, then dribbled his own drive halfway to the ladie's tee. The foursome waiting behind demanded he finish the course D.O.

d.o. by Barry Goldenfeldenfeldt May 13, 2005

D.O. 

<n> Deoderant.
Used by smelly kids so they don't get beat up.
When not used, shunning does occur.

See B.O.

Man #1: Dude, you need to get some D.O. for your B.O.!

D.O. by Rach-face July 27, 2008

D.O 

A famous member of the group called EXO.
One of the main vocalists, and has adorable eyes.
He is currently dating the second youngest Kai.

His real name is Do Kyungsoo (Kyungsoo Do)

Kai: Kyungsoo hyung, saranghaeyo
D.O: I love you too, Kai

^_^

kekekekekekeke~~~~

D.O by Divinee August 21, 2013