Nine hundred ninety-nine thousand, nine hundred ninety-nine

Nine hundred ninety-nine thousand, nine hundred ninety-nine (999,999) is one of the most commonly said numbers by MickeySugui. This number is from The FairlyOddparents episode "Snack Attack", when Timmy's dad ate 999,999 out of 106 Spark-Tarts, which Timmy, Sparky, Cosmo, Wanda, and many others made these for Denzel Crocker...accidentally....

MickeySugui's SAPI Syntax
MickeySugui says 999,999 too fast he's most likely saying "ninininninin..." It is also a reference to The FairlyOddparents where Timmy's dad said, "Don't be ridiculous, Timmy. Counting the ones I ate at the fair, I'm only up to 999,999. I threw the rest at Dinkleberg's stupid face!" which is literally too fast to catch up with.