Means someone who is sexy, an absolute unit at most things they do and have strong charisma or alternatively ‘rizz’. It’s also used to describe a person who has the ultimate scamming and hacking skills with the loudest and most powerful curry sharts. Or alternatively used as an insult for someone who’s a weak scrawny bastard.
Person 1: “Hey my ass hurts and stings still from that curry last night, been shitting all day!”
Person2: “I know, I feel like such a Yuvraj Mattu!”