User blog comment:Nordin.hammadi/The giggol in E powers/@comment-25420430-20140905144038/@comment-5982810-20140905163011

As far as I can tell, it looks like giggog = 10^100^100 = 10^10^200, which is equivalent to a gargoogol-plexed. That or he is incorrectly trying to refer to the number 10^100^^100, which is equivalent to megafugahundred-plexed.

Following the usual order-of-operations established in googology (all arrow operators are resolved right-to-left regardless of rank) we have that the first expression is equal to 10^100^100 and the second expression is equal to 10^100^^100.