Under what set of circumstances would you ever use that nomenclature?
A: Man, I hate it when everyone piles into the elevator and pushes all the buttons and we have to stop on every single floor.
B: Let me try something...
A: Wow, that was silent but successful. Now we have the elevator all to ourselves.
It'd be more like this:
Wow, am I bloated and gassy. I really need to let one rip, but the wife would be mortified if I did that at this party. Only one hope....
Clenches and hopesWhew. Silent but successful!