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 April 1, 2005