As dirty as goodwill underwearBy Jamie Archer / Leave a Comment / SimilesSynonyms: soiled, gross, brown, filthy, foul, nasty, messy, icky, slimy, raunchyTags: Dirty Funny UnderwearMore similes for FunnyAs well-equipped as a pair of monk’s underpantsChatty as a radio left onAs empty as an idiot’s mindConfused as a fart in a fan factoryLaid-back as a cat in a sunbeamAs pleased as punchSee all "Funny" similes →