musk - the odor of a secretion from the male musk deer
Musk - may refer to Elon Musk, an entrepreneur who communicated with the Flat Earth Society one or more times via Twitter.
Elon Musk is involved in Space X. https://www.youtube.com/watch?v=6Ghzi_bIpbM - "Elon Musk Owns Flat earther's! | TMZ TV - YouTube" He is also involved in the Tesla, an electric car.