Used to describe something that has a bad odor.
El pescado que compramos estaba maloliente y no lo quisimos cocinar.
The fish we bought was smelly, and we didn't want to cook it.
¡Fuchis! No puedo creer que alguien se atreva a comer ese plato tan extraño y maloliente.
Yuck! I can't believe someone would dare to eat that strange and smelly dish.