Few worth mentioning:

PERCUSSIVE MAINTENANCE – The fine art of whacking the cr*p out of an electronic device to get it to work again.

404 - Someone who’s clueless. From the World Wide Web error message “404 Not Found,” meaning that the requested document could not be located.

BLAMESTORMING - Sitting around in a group, discussing why a deadline was missed or a project failed, and who was responsible.

SALMON DAY – The experience of spending an entire day swimming upstream only to get screwed and die.

OHNOSECOND - That minuscule fraction of time in which you realise that you’ve just made a BIG mistake ( e.g. you’ve hit ‘reply all’)

STRESS PUPPY – A person who seems to thrive on being stressed out and whiny.

From Anonymonk