Extremely large; gigantic and humongous; much larger than ginormous
The Grand Canyon is a gimongous hole.
by Val November 04, 2001
Extra super mega big.
Yo, dat a gimongous burrito! I gotta gets me one of them's!
by Action Squirrel April 04, 2003
Adjective - Larger than giant, but not humongous. Not in the middle of Giant or Humongous, leaning more in favor of humongous
Look at the gimongous gorillas!
by Schlarty Bartfaust December 22, 2003