Top Definition
Larger than Humongous, but smaller than gigantic.
"It's Humoungous!"
"It's Gigantic!"
"... It's.. Giagundus!"
by Melchior October 30, 2003
1 more definition
When something is both Gigantic and Humungus, its Giagundus.
Wow that girls ass is giagundus!
by Special K February 25, 2003

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