When a scrotum gets so cold it has frostbite; a frostbitten scrotum.
Friend: Dude its freezing outside!
You: Yeah my balls are so cold I think I have a frotum...
by IronHippo53 January 07, 2014
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Larry enjoyed his new swimsuit, but his frotum detracted from its Hawaiian design
by assyfinger July 29, 2009
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an afrotuft of pubic hair upon the scrotum
Women: Your scrotum is extremely hairy!
Man: Why thank you! I refer to it as my frotum.
by Nitz December 29, 2004
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