Mechelín (en. Mechelin)

/meˈt͡ʃe.lin/

Slang Meanings

Term used colloquially to refer to someone very skilled with their hands.
That guy is a mechelín; he can fix anything you give him.
Ese chico es un mechelín; puede arreglar cualquier cosa que le des.
Sometimes used humorously to describe people who are not as skilled as they pretend to be.
Juan thinks he is a mechelín, but he can't even change a tire.
Juan se cree un mechelín, pero no puede ni cambiar una llanta.