I SLAPPED YOUR FISH means when someone slapped your fish. It's used in a funny way and people that try to use it seriously, well, won't be taken seriously. Its something that funny people would personally like to name themselves on a game that you can name yourself.
My friend's name on Big Brother: I SLAPPED YOUR FISH
My sister: NO!! DONT SLAP MY FISH!!!!!
My Friend: TO LATE (yes she DID put "To" instead of "Too")
My Sister: NOOOOOOOOOOOOOOOOOOOOOOOOOOO
*a few minutes later*
*my friend goes up to my sister*
My Sister: NOOOOOOOOOOOOO I JUST BOUGHT A NEW FISH!!!
My name: IM A DUCKING CAT BRU
Me: *EATS FISH*
My Friend: *SLAPS FISH*
My Sister: NOOOOOOOOOOOOOOOOOOO
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