Derives from the Silent Bob character and popularised by the rusty joystick forums troll called neomonk. Has a growing popularity to mean someone who trolls forums for the purpose of upsetting and annoying people. Also prone to pseudo intellectual comments and a self obsession with own opinions
Neomonk stop behavinglike such a cocknocker - its not big, its not hard (rather like your genitals really)
"Hobnocker" is a completely made up word from the nickelodeon show iCarly.
All of the previous definitions were written to Urban Dictionary AFTER the episode of iCarly with the meaningless word aired early 2009, all of the previous comments being a little bit later on.
The only description (from the episode of iCarly) is "gross... and illegal"