Ohrwurm is the German phrase to describe a tune that gets in your head and won't get out. Literal translation - brain worm.
Juliette has been singing "I've been working on the Railroad" Ohrwurm style for three days.
She hasn't been working on the railroad. Ever.
Despite her vivid singsonging lyrics about Dinah in the Kitchen.
Who is in that kitchen? Who????
It makes for a Verrückte Mutter (German for Crazy Mother!)