お茶の子さいさい

おちゃのこさいさい

easy task; piece of cake; cakewalk; cinch

Also written 御茶の子さいさい

Meaning

n
easy task; piece of cake; cakewalk; cinch; pushover

Example sentences

あんなやつを負かすのはお茶の子さいさいだ。

I can beat him hands down.
心配ないって。お茶の子さいさい。

Don't worry. It's a piece of cake.