Bagdush
Originally derived from the name of a character on the European World of Warcraft Realm Bloodfeather, the verb means to "ninja" or to "steal" an item you are not entitled to. The act of bagdush'ing something can cause side effects, such a losing your life and feeling the need to afk in dalaran while mounted for large periods of time.
"Hey look at that nolifer on the ashes of al'ar in dala, he totally bagdush'ed that!"