Top Definition
Wilanders (n. pl) – Testicles. Named after Mats Wilander, the former professional tennis player, who controversially suggested that world number one tennis player Roger Federer "has no balls". Typically used in a metaphorical, rather than a physiological, sense.
"Wow, those NASCAR folks sure have big Wilanders!" - from tennis.com
by Lucy_AU September 19, 2006

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