Top definition
When in Japan and a females pulls out a large strap on in front of a man and his erection goes away completely (shrinking in size).
Oh man when I was in Japan this girl gave me a shiitake shrinker and I was ready to come home.
via giphy
by Acidonym June 14, 2018
Get the mug
Get a shiitake shrinker mug for your bunkmate G√ľnter.