I say thingamagig and doohickey a good bit. Discombobulated is something I used to hear a lot. My mammaw used to refer to smelly stuff as “stinks like karn” (that’s the way she pronounced it...which one day I tried looking that up and realized that maybe she was referring to cairn which can be a burial place in Scotland. She is Irish-Scot with some Dutch origin.
My Granny used to say that she was going to “bobscribble” me.