guy 1: what's up homey? did you hear about john? guy 2: naw kill that ish, i 100 or gun it
100 refers to the state of keeping it real or being completely honest about a situation
"guy 1: what's up homey? did you hear about john? guy 2: naw kill that ish, i 100 or gun it" What is the definition of "100 or gun it"?