1 definition by No....really?

Top Definition
One who is ridiculously overwhelmingly passionate about a specific thing, person, place, verb, or adverb. One willing to die for said cause, and as a result their heart would stop beating.
She was a dieheart about the consumption of breakfast cereals. Thus meaning that she valued the consumption of breakfast cereals with great integrity.
by No....really? March 24, 2011

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