Definition of "Merc"

Some people might like to get a train to work / Or drive in, in a Beamer or a Merc

2005, “London Underground”, performed by Amateur Transplants

When I was 4 years old, my mother saved dimes, mostly Mercury Dimes, and periodically rolled them and took them to the bank. At that age, I once swallowed a Merc as I awoke from a nap after having spilled the contents of my piggy bank on to my bed. I woke up with something in my mouth and half asleep, I swallowed it...painful though it was and I can still remember it vividly 53 years later!

2002 October 9, UsterDay72, “Your First Time (on topic :) and long”, in rec.collecting.coins‎ (Usenet), retrieved 2023-01-03