To get on before you get on.

A corruption of the English language by the airline companies.
"'We would like to pre-board.' Well, what exactly is that, anyway? What does it mean to ‘pre-board’, you get on before you get on?" - George Carlin
by Cheese Tits May 28, 2009
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When you write up a car deal and count it before its delivered.
Wow you Pre-Board Ejaculationed the whole week!! What the Hell
by CJ Romig July 18, 2008
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The act of trailing an ambulance on the road so as to pass all the cars pulling off to allow the ambulance by.
I was about to be late for work until an ambulance pulled out in front of me in a hurry. I sped up and was Pre-Wake Boarding all the way to work and managed to get there on time.
by Sammyp June 30, 2013
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