屁の河童
へ
の
か
っ
ぱ
Meanings
1
a piece of cake; a cinch; something very easy
Idiomatic expression meaning something is extremely easy to do, often used in a dismissive or humorous tone. Literally 'a kappa's fart', implying something trivial.
See also: 河童の屁
This kind of work is a piece of cake.
For him, exams seem to be a cinch.