give one's head a shake

Verb

Canada idiomatic

(idiomatic, Canada) To reassess the common sense of one's behaviour, ideas, etc.

Japanese Meaning

自分の行動や考え方、常識を再評価・見直す / 自分の振る舞いや考え方を、もう一度検証し直す

It's time to give one's head a shake and start acting like a professional.

今こそ自分の考えや常識を見直して、プロらしく振る舞い始める時だ。

Sense（1）

(idiomatic, Canada) To reassess the common sense of one's behaviour, ideas, etc.

gives one's head a shake

（ present singular third-person ）

giving one's head a shake

（ participle present ）

gave one's head a shake

（ participle past ）

gave one's head a shake

（ past ）