When you have gone so long without sex, that your private parts, male or female, almost really ache.
It has been so long for me going without any action that I have an actual fuck ache. I need some now.
by Panchoman Jr. November 20, 2006
When you have fucked so much and hard your dick is sore for a while
Man, we fucked all night long and I gave myself a fuck ache
by darkmage August 18, 2004