This episode is the opener for season 6. The premise of the episode is as follows. Bobby scurries across the street to Connie's slumber party. Chane Wassonasong and his buddies crash the party. A confrontation ensues and Bobby is forced to eat dirt.
A distraught Bobby returns home to Hank who refers him to the local YMCA so he can take a class and learn how to fight. Those are all full so Bobby takes a women's self-defense class where he learns the 'groin shot,' yes, the episode title is a pun.
This is a classic King of the Hill episode. The line, "That's my purse! I don't know you!" has since been a minor hit as an internet meme. The best of King of the Hill is on display in this episode.
One aspect I noticed in my last viewing was how how much my view of the characters' actions in the episode have changed since it originally aired in 2001. The patriarch becomes incapacitated so the matriarch steps in to maintain the family structure.
There are a lot of great jokes and some morals to consider as well. Don't skip this one.