But not so long ago – back before Mars Candy turned M&M's into fictional spokespeople – the green M&M was rumored to be essentially the equivalent of candy Viagra.
Van Halen then famously fueled the rumors by requesting that bowls of green M&Ms be present in their dressing rooms.
Do you remember the rumor?
It's been the subject of dozens of Yahoo Answers discussions. Some confirming the rumors. Others disputing.
Here's the top definition on Urban Dictionary:
People have attempted at home experiments.
But the rumors just won't go away.
And Mars has definitely capitalized on the speculation.