I presume that the parent is referring to https://www.urbandictionary.com/define.php?term=Knob https://www.urbandictionary.com/define.php?term=Knob. Warning NSF

I presume that the parent is referring to https://www.urbandictionary.com/define.php?term=Knob https://www.urbandictionary.com/define.php?term=Knob. Warning NSFW text.