" Dimitri swallowed a toy bee and was butthurt that he couldn't shit for days" figuratively and literally
Derived from: being kicked in the butt. It hurts, you are embarassed, so you grab your butt and run away to hide and sulk, not wanting to show your face for a while because you don't want anyone to make fun of you. Maybe you want to shed a little tear by yourself and have a pity party.
You turn away, cross your arms. Pause. Say "yeah right" under your breath.
"Dude, quit being all butt hurt, I didn't mean it like that!"
Guy 2: Yeah, he was really butthurt last night when he lost beer pong and I called him a little bitch.
Guy 1: When will Chandler ever learn to take a joke?
Guy 2: Who cares? Its funny.