.....You think a gambit is a group trip to the casino
You might not be a chess player if...

If you think a4 and h4 are the two best opening moves because it looks like a goalpost.
slight edit to yours: if you think a4 and h4 are the two best opening moves because it works in call of duty therefore it must work in chess.

...if you ask your FM friend if people are constantly finding new strategies to play...
(lol [soooo cheeeesy])

you don't know how the pieces move
you are the guy in @ChinoftheQuinn's video (remember that guy who sounded like Squidward?)
.... you play candy crush and pokemon.