Someone, who the morning after being intoxicated, wakes up to find that he or she has lost a variety of personal belongings -- much like the iconic crime-solving teenager from the "Scooby Doo" television series who always lost her glasses.
Ashton: Dude... I was so gone last night. Where the fuck is my wallet? My iPod?
Nick: Damn, dude...you don't remember? You are velma.
Terri: Damn! I'm so Velma! I don't know where my purse is. Do you think I left it at the party last night?