A combination of gigantic & enormous; shockingly big.
That monster burrito I had yesterday was Ginormus!
by Margaret July 17, 2003
huge; gigantic + enormus = ginormus
The mans pants were bulging with a ginormus nutsack
by C. Mattern July 02, 2003
Gigantic and enormus all in one. like my penis
Dude his penis is Ginormus
by PabloSanchezAurillaGuerillaBeardedTacolovingHonyBastard January 02, 2006