A condition in which the corona and frenulum of the penis (the "mushroom"-esque part) are significantly wider than the shaft. Sometimes a result of poor circumcision.
He ain't need no ribbed condoms, he got that mushroom dick!
A really sweaty, gross vagina.
Slimy, smelly, sweaty. Really unpleasant.
Often applies to those who you expect to have nice vaginas, but it turns out it's just not a pretty site.
Can also be used as an adjective in the form of clangiest.
How was she?
She had a clange, man!
Oh dude, clanges are the worst!
Or
She had the clangiest vagina of all!