帰らなきゃ

have to go home, have to return

→ 帰る
帰ら go back + なきゃ Must; have to
verb · informal Rare #41,934
have to go home, have to return Colloquial shortened form of 帰らなければならない.
JA: もう帰らなきゃ。
EN: I have to go home now.
Conjugation of 帰る

こんな宝物をでも日暮れまでに帰らなきゃ

But I have to get back by sunset, even with a treasure like this.

— レミーのおいしいレストラン (2007)

帰らなきゃ

I have to go home.

— グッドフェローズ (1990)

もう帰らなきゃ

I have to go home now.

— Hoje Eu Quero Voltar Sozinho (2014)

ごめん帰らなきゃ。

Sorry, I have to go home.