hypnoboob noun[before a noun]1 •(UK, slang) The controversy over Green Party leader Zack Polanski having claimed, while working as a hypnotherapist, that he could help women increase their breast size through hypnosis.Yes, yes, we know, size, shape and presentation have nothing at all to do with milk production. At least we’ve not made a HypnoBoob™ joke. — 2025
