Spanish. Means dirty in masculine form. Cochina is the feminine form of the word. Could refer to something with a sexual connotation, but not necesarily.
Ewww...you ate your booger? Cochino!
You're such a cochina, but I like it when you do that to me.
Cochino (coe-chee-noe, N.A. "cochini", SPAN "cochino", literally meaning "pig"): A young man with questionable motivations concerning young women, usually of a lewd, erotic nature. Typically having a voracious sexual appetite and prone to constantly making advances on girls.
"Mija, I no want you talking to that boy Eric anymore, he's a cochino!"
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.