Top Definition
When you jizz, and don't clean up properly. After a while it dries and crusts up on your nuts.
Guy#1: Hey man, I was jerking it the other day and missed some on the clean up.

Guy#2: Ah, I hate when that happens.

Guy#1: Yeah, I had some serious nutlock later.
by JHE June 01, 2009
6 Words related to nutlock

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.