This paper explores metaphorical play, or, the creation and development of spontaneous linguistic metaphorical expressions. Emphasis is put on the limits of metaphorical productivity in this type of activity. The qualitatively studied examples were taken from the comment sections of Reddit. Metaphorical expressions that mark the endings of metaphorical plays based on new metaphors created by users of Reddit are explored. After a theoretical discussion on conceptual metaphor theory, the community of practice framework and a theoretical background on metaphors and humor, three posts from Reddit are explored. The comment sections include metaphorical games with sequences of comments where spontaneous metaphorical expressions are created over a period of time. After a certain number of replies, no more metaphorical expressions are created. Replies at the end of these sequences of replies are the focus of this paper, showing the reasons for the cessation of metaphorical plays. The results have shown two primary reasons for the ending of metaphorical plays. The first reason was that the knowledge required to develop these new metaphors became too specific. The second reason was that rules of behavior on the platform, that is, Reddit, formed the sequence and the ending of metaphorical play. The research was limited by the format of Reddit's comment sections and the nature of discussions on Reddit.