So large that it can not be discribed as any other word.
There is a gigunguse storm heading our way.
by mike January 15, 2003
1 more definition
Often used to describe something that is so large it is not fathomable unless it directly experienced.
Black women only have two types of teeters; they're either really small misquito bites, or they are Gigungus tits, that make you lean back in your chair when a girl walks in the room.
by Super October 31, 2004