Top Definition
1. n. The best kind of drug. It gives you the perfect high, and makes you really hyper and happy! Never depressing.

2. adj. Delicios, very delicious.
1. Person 1: Hey want some libbium?

Person 2: Hellz yeah, libbium makes me see unicorns that poop rainbows!

2. Person 1: This cookie is libbium!
#cookie #drug #rainbows #unicorns #poop
by Dr. L. February 25, 2010
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