Top Definition
A majestic term for those who can masturbate for long periods of time or who can masturbate often and not become fatigued or injured in the process. A person who can officially tug thump should be regarded as a god among both men and women.
Mike: Dude, your roommate has been in the bathroom for some time. Is he all right?

Jim:Yeah he's fine, he's just been Tug Thumping for the Sperm Bank. Guy needs weekend money.

Mike: Nice.
by Wanky Mc.Spanky February 03, 2011

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