Rectum

It grates on me when I've experienced an extraordinarily funny situation and there is no way to recreate that situation again. Generally what happens is that the folks who shared it will develop a new "inside joke" and call that moment's humor with a mere word.

What sucks is when you move. Your battle chest of inside jokes wanes significantly. At times you find yourself saying "If was here, we'd be laughing our asses off" after you, with barely contained mirth, respond to "how are you" with "make your ipod look like steve jobs" or some other equally useless non-sequitur.

Phleh...