Mismísimo (en. Very same)

/misˈmismo/

Slang Meanings

It is used to emphasize that someone is in a famous or important place.
I saw him in the very center of the city.
Lo vi en el mismísimo centro de la ciudad.
To indicate that one thing is exactly the same as another mentioned.
This is what I told him, and it is the very same message I received.
Esto es lo que le dije, y es el mismísimo mensaje que recibí.