Top Definition
Taking wanking to the next level - extreme, intense, aggressive and way beyond the pain barrier. Close your eyes and imagine your best friend stroking it to Pantera
Big Nath is so full of shit, he could thrashwank for Australia.

If Trollman had a break from his thrashwankathon, he might make sense for once.
by Lord NAAFI February 06, 2007
7 Words related to thrashwank

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