Dr. Yesterday

Someone who is hopelessly un-hip & out of date.

Phil: Hey Norm, I'm thinking of getting tickets for the Stevie Ray Vaughn concert for me & my 20 year old g/f.
Norm: Hey Dr. Yesterday, I think she'd rather go to to see Gwen Stefani. Plus, just so you know, Stevie Ray Vaughn's been dead for like 15 years, cockhead.
Phil: Oh...