flatterin, flatrin, flattrinnoun a fish, sometimes specifically a herring: God curse you fish, I’ve burned my hand wi you, you adulterated flattrin19-. etymology: origin obscure; but seems to be only in Scots Travellers’ usage; attested by Galloway and Perthshire and Argyleshire Tinkler-Gypsies, BS in TDITA, JS and SS; also collected by EMcC/PS, RD and Rev John Baird from Kirk Yetholm Gypsiesnote:
Cited in the form flatrin ‘fish’ from Canadian Paul Pope (2013).