Top Definition
An idea that is both trill and brilliant. (ie. A combination of the words 'true', 'real', and 'brilliant'.)
Yo, your idea to hit up the cheetah tonight was trilliant!
by James K Stewart September 03, 2008
(adverb) Excessively good or bright. Better than brilliant...
After an incredible performance; "That was trilliant"
by JBHouston May 13, 2011
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