Puredo
A Puredo (mostly used about males, but can also be used about females) is a person that is "all talk no show" He will think he is better than he is, saying he is stronger than he is, smarter, faster etc. and talking shit but won't do anything. Puredo as in Purse dog, the small dogs who think they are big and scary and barking 24/7 but won't attack or anything when someone bigger come along.
"Hey, Jack said he gonna beat me up on monday, he saying he takes 120kg in bench, what am I gonna do!?"
"don't worry, he a Puredo, most likely not gonna do shit
"don't worry, he a Puredo, most likely not gonna do shit