A Bobby Welch is someone that one likes for an extended and indefinite period of time even though the possibility of being together is almost entirely improbable. Every person has one, the one person they will always have feelings for and that always makes them smile when they see said Bobby Welch no matter what else is going on.
âShe has been in love with him since sophomore year, but they were never even a thing and he has a girlfriend, he must be her Bobby Welch.â