This is the boss of the Wind Castle and he uses farts as attacks.
He takes 3 sets of attacks to beat (the same as 'Boss Lumbering Fool').
He doesn't move and only has 3 attacks.
Basically just wait for him to let out a fart cloud and have it chase you back towards him.
Then use the following combination of buttons:
(Y), (repeatedly tap A), (Y), (repeatedly tap A), then (X) to finish the combo.
Repeat this another 2 times and your done.
Just watch out for his charged fart attack, as the only way to avoid it is to jump at just the right time.
You'll know it's coming as he starts to strain loudly.