n. (1) a person who forgets to zip their pants after using the bathroom. (2) a scatterbrain; a flibbertigibbet. (3) a person who confuses a deer with a cow. (4) a person who confuses something for something else that it plainly is not.
v. (1) to forget to do something obvious. (2) to be ridiculous.
Don't be a duca, XYZ your pants.
I'm not surprised she tripped on the curb, she never looks where she's going. She is such a duca.
You didn't bring the sleeping bag on the camping trip?!? That is a very duca thing to do.
Is that a horse? Whoops. No. It's a fish. That was obviously wrong. I guess I duca-ed that one.