I was about to submit an alias for size_play → sizeplay, but... do we actually need it, and for what purpose?
I'm not too familiar with the term, but WikiFur describes sizeplay as:
a loose term for a number of size-difference-related interests, including macro, micro, and sizeshifting, both in roleplaying and in stories of various sorts.
Size_difference, micro and macro tags already exist, so sizeplay seems redundant. Though I suppose it might work as an umbrella tag for those?
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