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1.
Situation or event meaning cool or kool.

Object or person being cool or kool.
"That pinata'S CANDY IS TOTALLY koolbular!~!~!~!~!~!~!~!."

"THAT GUY WITH THE STRIPED PANTS IS THE MOST KOOLBULAR PERSON I'VE LAID EYES ON IN ME LIFE."
by Agent Squid May 06, 2005