Going to a restaurant with friends or co-workers but not ordering anything. Usually preceeded by devouring a peanut butter and jelly sandwhich prior to partaking in the restaurant expedition.
A group of co-workers go to a sit down restaurant, the server gets to someone and says, "What can I get you".
Ryanesque Customer, "Ohh I'm not getting anything, I just had a delish PB&J, thanks."
Ryanesque Customer's Co-worker, "Come on man. That's embarrasing! Dont pull a Ryan!"