On ICarly and Friends the runner up to David Archuleta calls everyone Hob-knockers, hob-knocked is to get hit hard in the testicles ergo a hob-knocker...
A phrase use to describe someone who is drunk and slaps people with their dick. It commonly happens when someone is drunk of vodka or sambooka. They didn't censor this word when it was used in iCarly. No wonder the show aired on nickelodean.