I was thinking the same thing. The Worf Effect seems to me to apply to a character that has this happen often enough to ruin his Bad Ass image. Instances where the villian/hero offs some known Bad Ass once to demonstrate their badassness shouldn't be part of this.

An example of this is when DS 9 introduced the USS Odessey (identical to the Enterprise) and had it blown up by the Jemhadar just to show their badassness and so that the USS Defiant have a proper Bad Ass level on its introduction.

Early DBZ was littered with this. Characters would struggle to fight a Big Bad and then someone (usually goku) would show up and destroy the Big Bad to prove his baddassness (ie. Nappa, Ginyu force, Freeza).

Maybe we should call the New trope the 'Badass Test'. Any Big Bad that passes the 'Badass Test' would be a 'Certified Badass' (as apposed to a supposed Bad Ass that never seems to do anything).

Repeated application of a 'Badass Test' to a single character would then be The Worf Effect which could then lead to Badass Decay.

I think goku is the inverse of worf. possibly making a new trope in his name.

Wouldn't the "loss to new Bad Ass" thing count as Jobbing?

Really, Jobbing is the lighter form of this trope. If you lose once (or once in awhile), you're jobbing. Losing consistently means that you suffer this trope.