Well, Rob Lumpkin was a farmer, blacksmith, and Lord knows what else... a "whatchamacallit, thingamajig, thingamabob," etc... was a "doodad" to him-
but I also heard him use it in the context of something like cojones, or huevos..

Nevertheless, I'd be honored to earn mine at Summer Camp, Suh! I've slept on the ground before, but never, EVER on sandbags, or PSP. I know that sometimes, that was the only resting place some Gator aircrews got!

Nitey-nite!