Theoretically anything that wriggles, sticks out it's tongue and doesnt have legs is a snake right?

Theoretically anything that does that and is small is considering a baby and would probably have a mother somewhere right????

OMG I can't handle this!!!!

Are there snakes around here? (Central coast)? On the coast??

I don't even know anything about them! My cat obviously caught it and decided to leave it at my front door. Which fine, I thought it was a lizard and maybe my cat was talented and chewed off it's legs or something? But it doesnt seem to have had legs in the first place.
I wanted to go to the shop but Im too scared to go to my car now cause what if my cat got it from the front yard? shes been hanging around there a lot and I thought maybe there was another blue tongue lizard... but now Im freaking out I may have snakes??

wtf do I do!?