Fist I shall be consulting the League Managers' Association and suing the club for unfair dismissal. It will make great listening at an industrial tribunal
g. fun, interesting, enjoyable) to listen to. In this case the implication is that the material will be great for the person suing, but, in an ironic interpretation, uncomfortable for the other party to listen to.
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If someting "makes great listening", it means that it is "great" (e.g. fun, interesting, enjoyable) to listen to. In this case the implication is that the material will be great for the person suing, but, in an ironic interpretation, uncomfortable for the other party to listen to.