"Getting in on" is a common phrase used to describe a person's involvement in a particular activity or situation. However, there are numerous synonyms that can be used to convey the same meaning without using this phrase. These synonyms include joining in, participating, becoming involved, taking part, entering the fray, joining the action, and getting involved. These phrases can be used interchangeably and are useful when you want to express the idea of being part of something. Whether it is a conversation, a game, or anything in between, choosing the right synonym can help you to convey your message clearly and effectively.