Can sarcasm be a way of flirting?

Sarcasm is the use of words that mean the opposite of what you really want to express—whether that be to insult, to show irritation, or just to be funny. It can also be a cover for affection, as I learned growing up. My dad used it a lot.

Absolutely yes. Even though I mean nothing by it, the more comfortable I am towards a person, the more easily I can express my sarcasm/ flirting.

Yes. He could be trying to be funny, and maybe not quite getting there because of nerves.

I think it’s a necessary component.

Wittiness is very attractive.

Yes, it could be. but look for other signs that he likes you too.

Same shit as throwing snowballs at girls you fancied at school, kind of like the caveman bashing his bitch over the head with his club, claiming humping rights.

^^^^^^ Yes to that, though I wouldn’t grade it as a good approach, there are the uncouth.

yes, particularly if you are somewhat insecure.

voice of experience coming through

Yes, especially if it seems friendly or playful.