Originated from a comment in a Youtube video from a Tex Avery short called Magical Maestro where Butch plucks a hair piece in a 4th wall break
To pluck a string of hair out of a film projector whilst being a character in a movie.
Used in a sentence: "Yo Bob get rid of that string of hair in a corny fourth wall break"
"Yesiree George, time to do "Plucking the film imperfection"