I looked it up and it means messy, unkempt, long hair. I(m36) have messy, course long hair style.
I went to pick up the order and a worker to the side gets the to go guys attention that I’m there by saying, “what’s up greña to me.
I don’t respond because I don’t know what that means. But I see this dude exchange some smiles and giggles with a cook in the back, at which point I say hey man what did you just say to me.
He says, “greña. It means long hair” and seems to be very nice me, like he’s laughing with me. I just go okay man.
But looking it up seeing what it means, combined with how he said it, saying what’s up greña to me, a gringo, who likely doesn’t speak Spanish, and not explaining it and having the laugh with the guy in the back. Just seems like I’m getting mocked.
Bay area US btw