Muggles

We watched HP and the Half-Blood Prince (No. 6) again the other night. Pretty good movie. The book was even better, of course. Was Ms. Rowling aware that muggles was slang for marijuana back in the day? Did she know Armstrong's 1928 recording by that name, with its short and exquisitely economical trumpet solo? Nah. Maybe? The great wheel of popular culture spins on.