The phrase "snot sucker" refers to a device or tool used to remove mucus or boogers from someone's nose, usually a young child's, by creating suction. Full definition
Don't worry, most snot suckers have a filter so you don't have to worry about getting any... debris in your mouth. (policygenius.com)
-- the Boon grass drying rack which is great to dry bottles and / or breast pump accessories after washing, and the other would definitely be the NoseFrida — it's the most amazing snot sucker on the market! (blog.guguguru.com)