What does Bum Shock bum shocks mean?

Bum Shock bum shocks meaning in Urban Dictionary

Also known as Poo Jabs. Bum Shock is due to a confusion at the Sphincter and it is recognised by a short attack of pain in the anal area. It's ultimately brought on by needing a massive poo which hasn't very made. bum shocks are anal wind as told by 3 year-old child