I prefer to use the more subtle "BAM!"
I usually yell "Boom-shaka-laka!" and do a victory dance.
Back in the day, when I took a chess class in middle school, we were taught that by default and for the sake of clarity and courtesy, to say "check" every time. My philosophy is that if someone gets pregressively butt-hurt every time you say "check", they should've asked you to stop the first time it happened. It seems to me that to some it's considered to be a convention (everyone I've ever played with has done it), but if someone has a preference it should be respected. If they're so stuck on it, maybe they should mention it before the game starts.
Most checks are very obvious; in a tournament situation it'd probably be a wee bit inappropriate because chances are they're paying pretty darned close attention to what's going on.
Progress Report.
Last weekend I played a match in our club championship against an old rival, and good friend of mine (deckers1066 on this site). We played our usual nonsense, both king's stranded in the centre and mates looming large for both players. I won in fairly short order after finding a combination with an unexpected check interposed. The check was critical as I gained a tempo, enough to win the game. Unfortunately, I blurted out a "Check!" of triumph with some gusto. Whilst I regret this transgression, it did feel good!
I'm just taking it one day at a time and have turned myself over to a higher power.
It has been 5 days since my last "check".