What is the meaning of Periodt

I mean I've heard this so many times but still didn't get it​

I usually use it like period end of the story kinda-

Explanation:

it means ''thats it'' or ''thats final''

Example:

I love food periodt.

answer; have joints that fail from excess by early the accumulated effects of unnoticed infections,all of these things are possible for a person born without the ability to feel pain;

answer(emotion);