Dumbslip is a mistake in pronouncing or spelling of a word. Dumbslip is an identification of something you know about but mistaken for something else.
Dumbslip means saying or doing something that is not correct.
Dumbslip is not really being a dumbshit, just an oversight in a detail that a person does that is a little embarrassing.
A guy introduces his new wife to a group of co-workers, later, someone in the groupdumbsliped and called her by his former wife's name.
Is my dumbslip showing? I just gave my social security number to the cashier when she asked for my zip code.
I dumbsliped the spelling of my mother's maiden name, now my bank is giving me grief on my security questions.