The Vietnamese word "mới toanh" is an informal expression that means "brand-new" or "completely new." It is used to describe something that has just been made, bought, or used for the first time and has not been used or worn out at all.
Món ăn này mới toanh, tôi vừa mới làm xong.
(This dish is brand new; I just finished making it.)
Chiếc xe này mới toanh, tôi mới mua hôm qua.
(This car is brand new; I just bought it yesterday.)