"Gainax Bounce" and "Gainaxing" just had a flow to them, though. The world just won't be the same if we have to rename them... "Trigger Bounce" and "Triggering" draw up very different images.
[1] https://vimeo.com/512552697
[2] https://tvtropes.org/pmwiki/pmwiki.php/Main/Gainaxing
Edit: So, I wanted to check the discussion/history page to see when/why it was removed. Both need a login, and I can't create an account with a disposable address... Feels pretty suspicious.
Mostly makes me think of some EE effect you'd see with a o-scope.
"Yeah, that's not real, it's just Trigger Bounce"
But it's not an EE thing, it has to do with a firearm malfunctioning in a way such that a normally semi-automatic firearm fires more than once per trigger press, due to some internals on the trigger that I'm forgetting about / don't know about.
Now that I put my EE hat on though, there is a significant parallel to "switch bounce", which is an EE thing.
The disconnector prevents the hammer from moving forward until the trigger is pressed again (semi-auto) or the gun is in battery (full auto, closed bolt). I suspect open-bolt guns don't have one, but I've never looked at the trigger group of an open-bolt gun so can't be sure.