This is the 7073rd most frequent Portuguese word.
juba
Mane (of a lion or long hair resembling it).
In this sentence, 'juba' refers to the mane of the lion as its physical attribute.
A juba do leão é muito imponente.
The lion's mane is very imposing.
Here, 'juba' metaphorically describes the abundant and voluminous curly hairstyle.
Ela tem uma grande juba de cabelos encaracolados.
She has a large mane of curly hair.
In this context, 'juba' is used colloquially to mean the person's hairstyle or hair arrangement.