a dilly doof is someone that is remarkably silly or stupid in a funny way. Take the old english word for remarkable, dilly and combine it with the german doof (short for doofus), or a stupid person, and you have a remarkably silly person, a dilly doof.
Think of the main character in the movie Elf, 'oh nooo, I am such a dilly doof'. A husband that forgets to put down the toilet seat, 'dammit I am such a dilly doof'. Guy locks himself out of his own car... mumbles 'dilly doof' under his breath.
by VanBoardBike March 17, 2021
Dad: Billy stop making fun of your mother right now!!
Billy: But she's soooooo fat!
Dad: Gives Billy a sound dilly-bopper on the top of the head.
Dad: I will not tolerate your mocking!
Billy: But she's soooooo fat!
Dad: Gives Billy a sound dilly-bopper on the top of the head.
Dad: I will not tolerate your mocking!
by Ightnow September 23, 2022
Those kids are dilly daddlers
by Jamranger October 04, 2013
by meavagemary July 13, 2022