Not to be confused with a "no-five", the diss-five sees the disser turning their face from their target in a show disrespect while also turning their hand backwards, connecting the dissee's open palm with the back of their hand. The harder the diss-connection, the more impactful the diss.
The diss-five originated in games media in Australia in the early 2000s.
Cam thought I was unawares of his underhandedness, so I delivered in kind, dishing out a perfectly loud and aggressive diss-five, much to his alarm, and eventual chagrin.