n. Anyone who is acting like a douchebag (or is being a major douchebag) at a time that is bad for either the douchebag or anyone around said douchebag.
Person 1: Joe was acting like such a prick to his girlfriend while his mom was right behing him.
Person 2: What an inconvenient douchebag.
Person 1: Do you wanna know how much of a faggot you are?
Person 2: Dude, stop, my girlfriend's here. You're being an inconvenient douchebag.