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1.
The term given to the situation where one has been accosted into performing un-useful or repeated analysis work, potentially resulting in an unnecessary or unfavourable change.
Mike: “Hey Bob, where did that stupid change come from?”
Bob: “Oh man, Jane and I got Tannered the other day, and before we knew it the change was in! Farkkkk!!!”
by Frank manfrenjensen July 25, 2011
 
2.
When one absolutely rails some one so hard in the pussy, they have to ask to stop. Typically when a white male fucks a African-American female.
"OMG dude, i just tannered this half black chick named Janiae"
by Tannerjones June 03, 2014
 
3.
Tanner(ed) (adv) Getting so drunk that you piss a gallon worth of piss all over yourself and your friends. Also being prone to not sleeping at night and getting dumb tatoos.
Jim: "Why is my back wet?" Jon: "Because Jake got tannered last night and pissed on you"
by SiggyTop January 10, 2014