Top definition
The act of masturbation in which the climax, being an orgasm or ejaculation, is perfectly in sync with some sort of auction (eBay etc).

Created at around the very beginning of eBay, in London, when auctions became affiliated with computer systems. The year of 1995.
'Hey guys, last night I had the best Auction Wank! I came just as I won my new wardrobe!'
by monkeywithamelon March 17, 2013
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