Today’s lesson focuses on the French informal and somewhat slang interjection “Bah ouai !”, which translates to “yeah”. Bah ouais is essentially slang for oui (yes) and is used for putting emphasis on the obvious.
Bah ouais !
Yeah!

Example sentences
Est-ce que tu pense que la conjugaison des verbes est importante ?
– Bah ouais ! C’est essentiel pour apprendre la langue !
Do you think the conjugation of verbs is important? – Yeah! It’s essential for learning the language!
This second sentences uses partir, which translates to “to leave”. Students often confuse this verb with sortir (to go out). Se dépêcher is a reflexive verb meaning “to hurry”.
Est-ce qu’on part ce matin ? – Bah ouais ! Dépêche-toi !
Are we leaving this morning! Yeah! Hurry up!