Why is there a \o/ next to the candy amount when you have 42?
From the Candy Box 2 Wiki: Easter Eggs
One Easter Egg in the game is that when candy count reaches 42, The Player ("\o/") appears beside the number for a brief period of time. This is a reference to the Hitchhiker's Guide to the Galaxy, where 42 is the answer to life, the universe and everything.
When you get 1337 candies, the counter says "You have leet candies" in place of the count of candies.