Argentinian slang, with similar meaning to that of Jock.
The few differences with this term fall to tinchos being rugby players with long hair, who often upload images and stories on
social media in the effort of appearing to belong to a "high"
Social class.
Term
originated from the name "Martín" which got to be common amongst high school rugby players in Argentina.
(Tincho on an
Instagram post, said Tincho and one of his rugby chums both posing for the camera, whilst both of them appear to be covered in mud.
Description reads:)
-"A pic with one who doesn't
play well"-