The smell a man's genitalia gets after ejaculating previously in the day/week. The smell is reminiscent of bad mushrooms. Its pretty gross.
Lisa: I was gonna give Charley a BJ but he had mad bad C stank so i couldn't do it.
Sofia: Yeah the same happened to me and James the other day. I almost passed out it was so bad.
Sofia: Yeah the same happened to me and James the other day. I almost passed out it was so bad.
by Lil Blaaze February 10, 2010
Get the C Stank mug.