PRSM

A meaningless, but throughly picked group of letters pronounced separately, usually in awkward situations. Sometimes just shouted out randomly, purely from boredom.

Correct pronunciation:
youtu(dot)be/rSgHgsFlTig

So, what's your school average this year?
- Umm... PRSM. PRSM!

(Boring silence)
- So, did you guys... PRSM, PRSM! AAAAA, PRSM!!!