(n.) 1. a tacitly authorized period of delay in the giving of punani, or the payment of debt in punani, following a mind-numbingly long day at the mall with a chick. 2. hell on earth. 3. a waiting period set by an authority, i.e. angry girlfriend.
"So I heard that Jim's chick just put him on an indefinite punanitorium... friends, let us now drink beer for his loss."
A punanitorium is the antithesis of world peace.