ANSWER:

No problem. 

In the US a phrase used by the younger generation is G.O.A.T (Greatest of All Time). It was once used for experts in their fields (such as Michael Jordan being the G.O.A.T in basketbll). However, nowadays kids use this as general praise. For example, if you do something nice they will call you the “G.O.A.T” as a friendly praise. Is this permissible if no one is offended?

Etiquette, Morals and Heart-Softeners, Other |