Top definition
A day that is so cold that it causes shrinkage, as in the Seinfeld episode.
Jay: Man, it's so cold out here my ears are frosting!
Chuck: Yeah, it's a real weenie-shrinker.
by Chuck_2122 January 18, 2007
Get the mug
Get a weenie-shrinker mug for your bunkmate G√ľnter.