Easy. MOAN
Motherfucker Of All Numbers.
MOAN sits at the end of the number line. It is defined as the largest number to which no number can be added. MOAN + 1 is impossible because MOAN is the biggest number. There is nothing left to add.
Now I am guessing some of you GODLESS HEATHENS will be saying retarded shit like "But the number line just keeps on going forever, to infinity!" Wrong. If you attempt to go past MOAN you sail off the edge of the Universe. The number line is finite, just like the Universe is finite. Yes. They have been lying to you all these years. The textbooks are wrong. Don't worry, we will be burning them soon enough, along with the SODOMITES who continue to insist that 0.99...= 1