Babadick
Jail slang for "boogey man" Misspelling of the word "Babadook" which also means boogey man/men but in Polish terms.
If you're attacked by the Babadook, just flick some holy water at him, if you encounter a Babadick, you're screwed, literally. Luckily, the only place you could encounter a Babadick is in prison.