What is Atk?
1.
attack, usually aa attack level
"(user name), atk lvl?"
"75"
See 
2.
At the Keyboard. Opposite of 
Some twitter "bots" actually have real people ATK.
See 
3.
Short for "All Time Kings" a small group of the gang the Latin Kings who specialize in Graffitie. Often shown by a crown encircled with the letters ATK arround it.
Dont fuck with that kid hes ATK
Random Words:
1. 
A very silly person; goofball of the Asian ethnicity. Disobeyer of commands; ne'er do well. A slightly racist thing to say if said .. 
1. 
A swear word used in south asia , means the sweat on the cunt of a lizard . Infamous to be used as a friendly heated up discussions
Abe..