trots noun 2phrases 1 noun[plural only]2 •(slang) Diarrhoea/diarrhea.I've had the trots all morning and haven't been able to go out. •(US, informal) A trotting race meet; harness racing.A lot of people used to go out to the trots at Wayville. You′d see them all dressed up in their beads and bonnets and looking all flash, going off to the trots. — 2002 Phrases with trots screaming trotsDiarrhea.