chutonon is a name you asign to someone that is very cool and badass, you use this word in Chile mostly among young adults and it has some relation to the word "Chuto"
"ese tipo es un chutonon de primera, es muy buen amigo"
"that guy is a cool guy, he is a real friend"
"¿oye chutonon? ¿vamos al persa a comprar el domingo?
hey dude? do you wanna go to the fleamarket on sunday?