My family used rinkdum like Guest: Joanna. When my mother cooked a perfect dish my dad would proudly share the verdict...Hazel, you've sure got the rinktum on that dish!! It was a moment of great pride for my mom and we girls and my parents got a devilish kick out of it all! But rinktum was also used for non food things to indicate someone had perfected a task. My dad was of German heritage, my mom was English/Scottish and both were born in 1920. The families both come to Southern Missouri from Kentucky, I believe. But my dad was in the AirForce and we lived mostly in TX, LA, and AR.