Table tennis or ping pong?
It doesn’t matter what you call it, it is still played the same however, the degree of competitiveness may vary whether you are playing someone that refers to it as table tennis versus ping pong.
Table tennis was spawned from lawn tennis, players wanted to take the game inside so they could play all year long.
So if you refer to it as table tennis more than likely you are a competitive player that has a deep understanding of the game.
You will more than likely recognize the quality tables as well as the equipment that will make you a better player.
If you refer to it as ping pong then it is likely you are strictly in it for the fun and not necessarily a hardcore fan, but it doesn't mean you would be any less competitive.
However, both are played on a similar table and using the same type of paddle.