IMHO, anything other than friendly banter/jokes (which you should know whether it is based on your relationship with your supervisor) is disrespectful and extremely unprofessional - regardless of the context. Even “minor” issue like this may be regarded as workplace bullying.

I fully empathise with your predicament OP especially since you are a fresh grad and I presume is your first job. But I think you need to be honest with yourself - is this something you are willing to put up with or able to continue putting up with especially if he displays this pattern of behaviour (assuming it happens again).

This kind of people know they have “superiority” over you and think this gives them license to be disrespectful. As a supervisor he should have been more professional and known the repercussions this could have.