foul up

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In the end, though, neither an explosion nor a giant spill of fluid that could foul up waterways and the ocean occurred.

From Los Angeles Times • May 27, 2026

Self-deleting messages can also foul up long-established record-retention practices and, for some federal employees, they may constitute a violation of the law.

From New York Times • Jul. 6, 2017

This winter, he says, there’s no El Nino to foul up the weather prognostication.

From Washington Times • Aug. 14, 2016

We didn't foul up or shrink from the daring option.

From The Guardian • Jul. 28, 2012

I partly blame all those dopes that clap their heads off--they'd foul up anybody, if you gave them a chance.

From "The Catcher in the Rye" by J. D. Salinger