A derrogatory term or insult. Typically used to describe a girl or woman who ruins things, but is not restriced to that and can be used to describe someone who makes you angry, or is of a general surly demeanor. Has no actual lesbian connotation. Seemingly a combination of dyke and douche bag but the meaning is greatly changed.

Originating during a heated game of Mario Party 5 in which Peach was declared a "Dykebag."
That dykebag Peach landed on the mircale space during the last turn of Mario Party and made me lose the game.
by Jonny Shotty January 4, 2006
Get the dykebag mug.