The Son Of Mondegreen

(I am looking for new albums in a music store when I overhear a conversation.)

Customer #1: *singing ‘The Monster,’ a song of Eminem ft. Rihanna* “I’m friends with the monster, the son of my bed.”

Customer #2: “Your lyrics are wrong. It’s ‘that’s under my bed.'”

Customer #1: “Seriously, how can a monster fit under a bed?”

Customer #2: “‘The monster under the bed’ is an expression used by children and the song uses this expression to depict the artist’s struggles in overcoming his demons. And besides, how can a monster be a son of a bed?”