iss

A casual contraction of "it is." Can also spelled as "is."

"If it don't got bone on it, iss boneless!"

SYAJ

An acronym for "sorry you're a jerk." Used when someone aggressively blames other people for things that aren't anyone's fault.

"wtf you fucking noobs we could have won if you guys weren't so braindead"
"SYAJ"