Answer:
"Chapa con el oxigenado" is an Argentine slang phrase that means "flrting with someone" or "trying to get someone's attention." The word "chapa" is slang for "to flrt," while "oxigenado" refers to someone with dyed blonde hair. So, the phrase literally means "flrting with the blonde." However, it can be used to refer to anyone, regardless of their hair color. It is a casual and colloquial expression often used among young people in Argentina.