Noun. A derivation of the word "Smackhead" (which denotes a heroin addict). Someone who is such a worthless bastard or idiot that they might as well be a full-on heroin junkie. This did not, as most of the current definitions suggest, originate from internet gaming, because it has been in use for the last 10 years or more. The author of this definition recalls using as well as hearing the word circa 1992.
"If you think this word originated from Battlefield '42, you're more of a smacktard than I thought."
by Erik Jacobson May 20, 2005
Get the Smacktard mug.
Someone who is addicted to smack and is mentally retarded.
Man that fuckwit is fuckin smacktard.
by DiDwE September 23, 2008
Get the Smacktard mug.
Someone who says things that are so stupid or obvious that you just want to smack them upside the head.
Fey: Now how do I get this up?

Lana: You might want to rephrase that...

Jake: Yeah...

...

Josh: AAAHAHAHAHA YOU WERE TALKING ABOUT A PENIS!!!

Everyone: Um, no Josh...

...

Jake: Smacktard...
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Eliot: 'Fucktard' is the best expression ever.

Laura: No, 'smacktard' is. You smack a smacktard, but you don't fuck a fucktard.

Eliot: Yeah, well you don't arse a hole either...

...

Laura: WTF...
by q(^0^)p April 23, 2008
Get the Smacktard mug.
Someone too unrepentantly stupid to be called a wordfucktard. Smacktards actually are trying to be stupid.
Your friends are such a pack of smacktards....cuz they keep on hanging out with a wordfucktard like you.
by Balzac February 19, 2003
Get the Smacktard mug.
Someone who incessently spawn kills you or kills their own team mate, generated by being a total idiot who will get their behind pwned, probably by a 1337 russian gamer called Mikhal.
Example from Tribes 2.

Zobby the nob: I will kill everyone, I am the best!!
Zobby the nob: *constantly kills everyone, even own team mates with a spinfusor as soon as they spawn*
Zobby the nob: I own you all!!
Mikhal: You're a smacktard, you will die....
Mikhal: *pulls out the basic blaster and shoots down Zobby the nob with a few simple shots effortlessly*
Server: Zobby the nob screwed the pooch.
Zobby the nob: No way you cheated!!
Mikhal: Shut up you annoying smacktard, you're outta here.
Server: Zobby the nob was banned by admin Mikhal.
by ShadesZero a.k.a Scorpian April 3, 2004
Get the Smacktard mug.
A dumbass that needs to get slapped that many people hate.
Crusadertube: You fucking muzzie

Moh77: STFU SMACKTARDS
^^pwned
by 1437 October 16, 2007
Get the Smacktard mug.
It didn't originate in online gaming as has been suggested, and has actually been around since the mid 1990's.
Smacktard defines a drug dealer selling drugs or, as some forms are known, smack, that also happens to be a retard.

Smacktard

It has recently been embraced by the world of podcasting after being introduced to 'Punky Radio by Kaje.
You are a smacktard.
You are all smacktards.
Sam is a smacktard.
by James Reilloc February 3, 2006
Get the Smacktard mug.