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  • bounce
    v. 1. [perhaps from the image of a thrown ball bouncing off a wall] An electronic mail message that is undeliverable and returns an... VIEW ENTIRE DEFINITION


  •  View Definition: UBD 

    UBD


    /U-B-D/ [abbreviation for `User Brain Damage'] An abbreviation used to close out trouble reports obviously due to utter cluelessness on the user's part. Compare pilot error; oppose PBD; see also brain-damaged.