According to Vivian (YouTube Channel Vivian Tries) Fungalitus is present on items that you think are clean but you're not sure.
I just got these new metal straws at the Dollar Store. They are probably okay to use but I think I'll put them through the dishwasher just in case they have Fungalitus inside that I can't see.
A thrift shopper who will stop at nothing to get a bargain; including trampling store employees to death. The term is a combination of "frugal" and the Spanish suffix "-ista" which connoting someone who is dedicated to a cause.
Black Friday saw the emergence of a new breed of shopper, the frugalistas, as they stampeded into a store for Christmas shopping; trampling an employee to death.