Slime has become extremely popular as a children's toy in recent years and is typically made with various household substances. Although reports of slime causing skin irritation are not uncommon, case reports of slime-induced allergic contact dermatitis have only recently surfaced. We present a case of a child with hand dermatitis, history of exposure to slime, and positive allergen patch testing to two ingredients found in slime. The case underscores the need for clinicians to be aware of slime as a possible cause of allergic contact dermatitis in children. Given the trend of newly-reported cases, we briefly review the current literature to date.