A sexual act, consisting of brushing dandruff from your pubic hair onto a girls face after she has finished giving you a blowjob.
Frank: "How did your date last night go?"
Paul: "Man, it was awesome! We went back to my double wide, and she let me give her a Mason-Dixon Snowstorm!"
Paul: "Man, it was awesome! We went back to my double wide, and she let me give her a Mason-Dixon Snowstorm!"
by ShopMonkey March 10, 2022
A line in the United States between the North and the South where Yankees go to take a shit and Confederates go to eat.
Rebels head north to the Mason-Dixon line for dinner, while the Damyankees slide south to take a crap.
by Bigyank January 11, 2012
A disease common to people born below the Mason-Dixon line, which restricts each individual's IQ to less than the number of teeth they have. Also referred to as MDLS
So I was watching COPS, and they pulled over a guy with a joint behind his ear. He had a major case of Mason-Dixon Line Syndrome.
by Dr Shea Foster, DDR December 19, 2008