NSFW (Not Safe For Work/Adult) expansion pack 1 for the authentic, hilarious mouth guard game, Watch Ya Mouth (also works with other knockoff mouth guard games of course)this is an expansion pack only and does not include cheek retractors. This is a “NSFW” or “not safe for work” expansion pack. It contains offensive material, sexually explicit material, vulgar phrases and words and gross concepts. This is for adults only. If you are easily offended, do not play this deck – we have lots of other fun, family-friendly expansion packs instead .