growing

"Growing" is an ambiguous term that should not be used as it can hold multiple meanings, including but not limited to:

expansion: Used for the growth or enlargement of pre-existing body parts, such as breasts, butts, or penises.
age_progression: Growing older or "growing up"; often (but not always) for young characters growing into teenagers or adults.
weight_gain: Characters who are gaining fat, which often results in a growing/expanding gut.

If you see this tag being used, please remove it and, if necessary, replace it with a more specific tag.