Top Definition
adj. Denoting any insanely boring or pointless college class.

or

n. Any such boring or pointless course/class.

Based on The Introduction to the Humanities course offered at Stanford University, which are very IHUM.
Dude, 'Exploring Humanistic Pespectives on Science?" Why I am stuck in such a f*cking IHUM?
by GoodJuju June 10, 2009

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