Top Definition
Breakfast cereal that Boomtrain the Benevolent consumes for his morning meal.

Rumored to be the source of all his power.
Andrew S.: "How do you get so awsome Boomtrain?"

Boomtrain: "Eat your vegetables, and take 6 Boombix in the morning"
by Boomtrain June 20, 2008
adj) a word that means anything realating to being cool or awesome. can be used in forms such as "boombixer", a person that boombixes or "boombixn'" in the process of boombixing.
Man, after I was boombixn' at that party last night.
by Alex November 17, 2004
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