The Vietnamese word "đen nghịt" means "very crowded" or "overcrowded." It is often used to describe a place that is packed with people, making it difficult to move around or find space.
Trong giờ cao điểm, đường phố rất đen nghịt.
(During rush hour, the streets are very crowded.)
Chợ Tết năm nay đen nghịt người.
(The Tết market this year is overcrowded with people.)
"Đen nghịt" is a useful word to describe very crowded situations, especially in public spaces.