From the Super Mario Wiki
“Our people. Brave.”
Whittles are a species of tree spirits appearing in Super Mario Galaxy 2. They appear in numerous galaxies as helpful characters with often simple yet incorrect grammar. Their name is taken from the word "whittle", which means to carve something out of wood.
Super Mario Galaxy 2
Whittles appear in several galaxies, notably the Tall Trunk Galaxy. In the Tall Trunk Galaxy they appear in all the levels. In the first level they teach Mario how to use the Blimp Fruit on Yoshi and later on they tell Mario to slide down the gigantic slide to prove his bravery. Whittles are small, humanoid figures with geometric heads and bodies made entirely out of wood, with the exception of a single leaf on their heads. They are a very proud and brave race. Due to this, they like to prove their bravery by sliding down the big slide in their galaxy and surviving its trials. When someone proves their worth the Whittles reward him or her with a symbol of courage. They also consider the giant tree at the center of the Tall Trunk Galaxy sacred. They speak with simplified, somewhat incorrect grammar.
Mario Party series
Mario Party 9
In Mario Party 9, a Whittle is the one who places the logs to be chopped and Bob-ombs to be dodged by the players in the minigame Logger Heads. Two Whittles that differ in appearance with the others also appear in the background. They also appear in the background of the Step It Up minigame mode, and they congratulate the winning player when they reach the top of the tree.
Mario Party: Island Tour
A Whittle can be seen in Mario Party: Island Tour on the Kamek's Carpet Ride board. Its role is unknown. Two Whittles also appear in the minigame Meteor Melee where they cheer on the players. As well, more Whittles appear in the minigame Deck Hunt.
Names in other languages