A myth that many people used believe in, however it was so mythbusted to the point where the actual truth became common knowledge.
Bill: Hey John did you know tomatoes are actually-

John: Fruits. Dude that myth is long mythfucked.

Bill: John don't chew on that pencil! You'll get lead poisoned.

John: There's no lead in this, dumbass. I'd thought you know since it's been mythfucked.
by Dr. Curious June 25, 2011
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