What are colitas?

Answer 1

Colitas may refer to the customary pigtail worn by matadores in the past. The word means 'little tail' in Spanish. It was a mark of their profession. Few have them today and, if they do, they are usually clip ons and not real, only worn during a bullfight.

Answer 2

It's a Spanish term meaning "little tails." It refers to the buds of a marijuana plant.
Desert flower.