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1.
Magiabulance (noun) is defined as an instance in which one talks about something which one knows nothing about. Essentially, to crap on, to bullshit.

Other forms include magiabulant (adj) and magiabulate (verb)
Horace's thesis was teeming with magiabulance.

Gertrude, you're being magiabulant!

Cornelius would magiabulate in class when he didn't know an answer.
by Scott January 17, 2005