pull someone's leg

Meaning: からかう、だます

For Example:

‣ A: Stop pulling my leg! I actually thought what you told me was real.

A: 騙したな～！ほんまのことかと思ったやん。

B: Come on, it's April Fools day!

B: ええやん、今日エイプリルフールやで！

‣ My brother often pulled my leg when I was little, but he was always there for me when needed.

私が小っちゃかった頃、兄はよく私をからこうてたけど、必要な時はいつもそばにおってくれた。

Synonym:

to tease, to joke around