You know!! For the kids!
Ah fin Ah ust hrained ahi ounge rying oo ay at.
Exactly. 
D’ye mean the oojah-cum-pivvy?
Or that wonderful English phrase, “the doings,” as in, “hand me the doings, Lord Chomondley…”
Sheesh.
A thingme-dealey-bob is *obviously * a whatchamacallit that you simply cannot remember the whosiewhatsit for. I have a whole thingamajig full of thingme-dealey-bobs, but I keep holding onto them because one day, ONE day, I will remember the whosiewhatsit for it. And I’ll write it down in that doohickey (even though the little doodad is broken.)
You! You snuck in a Disney quote! I’m gonna tell!
Oh and a thingme-dealy-bob is a dingle whumpus. You know, a Thingamadoodle.