blumpkinのようなどんな単語でも探してください。
 
1.
the flaky skin on a gentleman's scrotal sack after he has scratched himself too hard.
I scratched myself so hard I developed balldruff
drdruffによって 2009年05月10日(日)
 
2.
The hardend leftover of male ejaculation, after a day or so, it becomes a flakey, dandruff like material.
dude, i think your friend had sex in here yesterday, look at the balldruff on the blanket, eww.
Fish Snackerによって 2007年03月16日(金)