1 definition by Casey P.
To prove something that is largely believed to be true to be false. Derived from the TV show Mythbusters.
"We thought that the show was on Tuesday, but Derek mythbusted and told us it was on Friday."
"Quit mythbusting, Tim. Let us believe what we want to."
"Quit mythbusting, Tim. Let us believe what we want to."
by Casey P. March 9, 2007