foul up

verb, noun — 3 senses

foul up

verbalso spelled foul-up

UK /faʊl ˈʌp/

1

Idiomatic, Slang To make a mistake, to go wrong.

You really fouled up this time.

2

To botch; to make a mess of.

I fouled up question 3 of the exam.

Synonyms: mess up, fuck up
Derived terms: foul-up

foul-up

noun

UK /ˈfaʊl ʌp/

1

A disastrous mistake.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — authors: page histories for foul up and foul-up.