uncle jack hasn't come by today 

This is when a guy/girl hasn't had the time to do his/her daily jack-off and is pent up and taking it out on others. If you are not a daily masturbater then this could also be used as "uncle jack hasn't come by this week/month"

"I'm sorry for being a jerk, uncle jack hasn't come by today and it has be all riled up"

uncle jack hasn't come by today by Wholeeyo October 8, 2021