IHeart Art - S1-E14
Continuity mistake: When Spencer is working and the dentist pushes back the tongue and his saliva sprays on Spencer, you can see that every time it switches back to Spencer, the wet stain on his shirt decreases in size.
Continuity mistake: In the beginning, Carly gets a bowl and fills it with popcorn up to about 2/3 full. The camera cuts to Sam, then back to Carly, and the bowl is barely full. The camera goes back to Sam then to Carly again, and the bowl is 2/3 full again. Freddie walks in, and the bowl is barely full again, which Carly now fills with popcorn.
Continuity mistake: Spencer arrives at his destination with butter on his elbow but it disappears a few moments later.
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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