Goof-up Definition

verb

(slang) To make a mistake.

If I go near a skateboard, I'm sure I'm just going to goof up and fall off.

Wiktionary

(slang) To introduce problems to or damage through incompetence.

I tried to fix it, but I think I just goofed it up some more.

Wiktionary

noun

(slang) A mistake or problem.

The letter they sent was a goof-up; it was intended for someone else.

Wiktionary

Other Word Forms of Goof-up

Singular:

goof-up

Plural:

goof-ups

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