The definition of being absolutely awesome or absolutely horrible. Mainly used to express great joy or sorrow towards an object or event.
1.Man, I met this girl last night, and the sex was megafriggadealio!!!
2.Man, I met this girl last night, but she was a man that was a megafriggadealio!
2.Man, I met this girl last night, but she was a man that was a megafriggadealio!
by Hassman March 31, 2005
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