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More brilliant than brilliant, used while drunk and something happens or is said that is beyond brilliant
Person 1: "I think we should go to this party, they've got titty shots!"
Person 2: "That is Billiant!"
by Derek Stuart May 18, 2007
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When your enthusiastic about something but have no idea what it is or why you should care. Basically when your bored into a brain drunk fart by your present company, then some grinning idiot looks at you so you have to respond with a proportionate enthusiasm, and this is what flops out.
Kevin: :D
You : ".........Billiant, yeah really .....Billiant!"
by aBilliantName March 31, 2017
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