BLEH full form Meaning : Expression of boredomCategory : GeneralSub Category :Online Slang Type : Simile What does BLEH mean or stand for ?Bleh or blah is an Expression of boredom that is used online to show disinterest in a particular topic that is being spoken about. Related Terms BLAH full formBAH full formCODE9 full formGUDD full formGTGFN full formDWTTAI full formBOOM full form Similar AcronymsxvdaZBRZEOZIPJMI