ginumbo 

HUGE. a combination of ginormous and jumbo. used for big emphasis.

pronounced "ji-numbo"

Dave: today i saw a ginumbo Saturn

Carl: yeah dude that planet is massive

ginumbo by p1ers01mmm May 6, 2019

Gigumbo

A combination of giant and jumbo. pronounced.

The Empire State building is one Gigumbo building

Gigumbo by Candy Reedy March 9, 2005

ginumbous 

Significantly larger than enormous and ginormous put together. Pronounced gy-num-bus.

That is a ginumbous elephant.

ginumbous by Bailey Schaff November 26, 2006

gigumbous

a combination of gigantic & humongous.

Dude, that hot dog is gigumbous! I don't think I can eat it aLL!

gigumbous by LiL DiVa February 15, 2009