A fork of Rural Dictionary
"Yeah same" is a response given to people when one doesn't feel like responding to them, either because they are lazy or they do no like the person speaking. The phrase will confuse the other person, especially when repeated several times.
Ex. Tom: How should I ask my girlfriend to prom? Zach: yeah same Tom: what!? Zach: Yeah same Tom: You're so annoying Zach: yeah same