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."
by Casey P. March 08, 2007
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A great show on the discovery channel hosted by two awsome hosts Adam Savage and Jamie Hyneman they go on doing expiriments on myths and busting them or proving them plausible or confirmed there is also 5 co hosts Kari Byron, Tory Belleci, Grant Imahara, Scotty Chapman, and Christine Chamberlain.
On Mythbusters they put myths to the test with science!
by Shawn Underwood January 04, 2007
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One who attempts to disprove urban legends or myths.
by C. Miller September 11, 2005
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Title: TV Show on the Discovery Channel. Two quirky science-geeks (Adam Savage (the redhead) and Jamie Hyneman (The beret and mustache) try to test Urban Legends and popular Myths.

Adj. 1: A very large, powerful explosion

Adj. 2: A very large, powerful fuckup
1. HOLY SHIT! Did you see that nuclear bomb test? That was so mythbusters!

2. DAMN IT! I pulled a real mythbuster on my car. Shouldn't have tried to drive through that lake.
by ladydeakin April 28, 2005
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To have an urban legend (or myth) being busted by the Discovery Channel show, Mythbusters.
You can't shoot off a lock with a hand gun, like on Big Trouble In Little China, that had been Mythbustered.
by ihatecejay September 01, 2008
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The sexual act in which one person holds mentos and coca-cola in their mouth while a partner ejaculates into their mouth. Immediately after said partner has finished the holder will close their mouth and shake their head vigorously in hopes of creating an explosion. Alternately the ejaculating partner may also urinate in their mouth.
If you play your cards right I might just take you home for a mythbuster session.
by MrsGreyOwl January 15, 2018
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