a.d.

Code word for adrenaline needle, used as a last resort for someone who thinks they are about to die from a heroin overdose. Something about adrenaline counteracts the heroin, sometimes saving the user.

"Shit, I need the A.D."

a.d. by prongstape July 28, 2008

A.D.

Alpha Dog. The shortened name of rapper Alpha Dog from the rap group the G.D.I.'s. OR the leader/protector of the pack, usually the biggest and meanest memeber of a group of people, quite often an asshole.

A.D.'s gonna beat the hell out of you when he finds out you sucker punched his boy last night

A.D. by Joey_Bag_Of_Donuts August 13, 2010

a.d.

a.d. means anonymous dick. It is usually in the context of a random hookup, especially involving oral sex on a guy. It mostly refers to gay guys or guys who have sex with men.

I really could blow some A.D. right now!

a.d. by Mister7 December 5, 2009

A.D 

Acronym for artificial dumbass.

Person: hey alexa
Alexa: what?
Person: what's nine plus ten?
Alexa: 21
Person: wow you're a A.D

A.D by Djdkxjd November 8, 2020

A.D 

They know that they are the best smash bros player

Person 1:did you know that alex got clapped my A.D

Person 2:yes and andres got combo on

A.D by AD Ricardo August 23, 2021

A.D.S.R.S 

Short for : Autistic-Down-Syndromic-Retardation-Syndrome

Bill: Yo I heard your mom gave birth to a baby with A.D.S.R.S...
Bobbo: PLz STFU. I don't need to be reminded

A.D.S.R.S by Super MONkey I fucking drunk January 25, 2018

A.D.D.

Stands for Attention Deficit Disorder.
A lot of people say they have it because they "sometimes have trouble paying attention in class" which is bullshit. That just means you have a boring teacher.
If you REALLY have ADD, then you can't pay attention to ANYTHING. If you try to read, do homework, watch TV, take a test, or listen to somebody, your focus will slide in and out CONSTANTLY. There is also ADHD in which you are also hyperactive.
Most kids will take medicine like Ritalin or Focalin to help them concentrate.

Dumbass: LOLZ LIEK I TOTALLY HAVE A.D.D. CUZ I CANT STUDY FOR EXAMZ LIEK LOL

Kid with A.D.D.: You dumbass you don't actually have A.D.D.

A.D.D. by ADDboi!1 June 15, 2011