In common parlance, it's become commonplace to use "got roasted" to mean a person received (possibly justified) verbal abuse, whether or not it's funny or meant to honor that person. So, saying someone "got roasted" can often mean the person was subject to verbal abuse and didn't have an adequate defense or comeback.

What does it mean when you get roasted?

When you criticize someone harshly, when you bring up their flaws and their shortcomings, you "roast" someone. So, getting roasted means being criticized harshly by someone. Comedy Central has a show where they roast celebrities.

What is a roast master?

Filters. One who leads a roast (comedy routine that criticizes its human subject).