Definition of foul something up or foul up in English:
Make a mistake with or spoil something: leaders should admit when they completely foul things up
More example sentences
- ‘Here was an ideal opportunity for Yorkshire to have done something positive and they have gone and fouled it up,’ he said.
- We're just another species - the dominant species, maybe, and the one who's doing the most to foul things up for all the rest, but surely we're flattering ourselves if we think that we are somehow essential to the operation of this planet.
- Although it's a relatively easy daily task, reduced with usage to a routine I can accomplish in a couple of minutes, running on auto-pilot, it takes no more than the click of a wrong button in the text editor to foul things up.