Continuity mistake: In "iGo to Japan", when the iCarly crew, Spencer and Freddie's mom have to jump out of the airplane, Freddie's mom jumps out of the airplane with out buckling the parachute backpack in a rush to follow Freddie. But when everyone has landed, she is struggling to unbuckle and take off the backpack.
Continuity mistake: In "iGetPranky", when Carly and Spencer begin talking, Carly turns off the TV before they start talking. Then she turns off the TV once again.
Continuity mistake: Whenever they are doing the show, Freddy is almost always holding the large camera with blue light. When it shows him holding it, it's shaking. When it shows Carly and Sam from the angle of Freddy's cam, it is perfectly still. Always.
Continuity mistake: In some episodes, Lewbert's wart is small or not even there.
Continuity mistake: When Freddie holds his camera to film the web-show, he holds it at chest height pointing the camera upward to film the faces of Carly and Sam, but when you see footage from Freddie's camera it is completely straight.
Answer: In direction translation it means 'Mischievous Spirit'. 'Hob' as in HobGoblin means clown or prankster, and 'Knocker' was an old age term for Poltergeists in mines. Miners would often complain of hearing knocking sounds down mines when there was no-one else down there, hence 'Knocker'. It's not a regular English expression though.
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