A fork of Rural Dictionary
It's an interjection/slang in Brazilian Portuguese.
'Eita' is an interjection commonly used in the southeast region of Brazil, suggesting awe or surprise or even conformity.
And 'que tiro' literally means 'what a shot'.
When they are thrown in the same sentence, usually means the sayer is in awe, while looking at an attractive person.
Situation: an attractive someone posts a nice pic on instagram
One says: Eita, que tiro!