nae bad - Means it's pretty decent or not as糟糕 as you thought it was,

Means it's pretty decent or not as糟糕 as you thought it was, like your mom's cooking but you’re too tired to complain.

Your ex sent you a text saying 'I miss you' and you replied with 'Nae bad.'

Your math test had 3 questions right and you said 'Nae bad.'

Your cousin's TikTok dance was okay and you said 'Nae bad.'