Unlike other initialisms, which were invented and grown on the internet, “your mileage may vary” goes back to the 1970s and ’80s in the U.S. During that time, automobile manufacturers frequently promoted their estimated mileages to compete…However, due to the variations in driving conditions, they had no way of guaranteeing the exact mileage customers would actually get. Therefore, these ads would feature the disclaimer, “Your mileage may vary.”
What Does “YMMV” Mean, and How Do You Use It?, Vann Vicente, howtogeek.com
What a weird taunt. “Beat that!” is sufficient…adding “your mileage may vary” suggests that you can score as well or even higher than me, but maybe that phrase was just coming into vogue. Batiuk’s been getting considerable mileage out of sending his Act I characters back in time. It’s been nearly 12 years since Funky’s car accident sent him back to the town square of late ’70’s Westview, where he would encounter his teenaged self as well as his future mate, before checking out the comics spinner rack. Five years later, the entire gang got to meet their middle aged selves (except Lisa LOL) during another month-consuming story arc that was the Time Pool Reunion.
It’s true: we boomers love to brag about having survived a childhood in which auto seat belts were not standard equipment, and among our childhood playthings were polonium rings, hot miniature ovens, and Lawn Darts. I’m just not sure why Maddie would take the existence of a kid’s helmet made of “off-gassing” plastics and extrapolate that to everything being dangerous in 
Aside from Les, Cayla, and their offspring, about the only other folks not seated at Harriet Dinkle’s massive Thanksgiving table were the Atomik Komix Krewe. Maybe it was necessary for them to work through the holiday: after all, AK is a booming comics publisher, regularly pushing out new titles, operated by a staff of six people with a median age well north of sixty.
Son of Stuck Funky 