shit in someone's Cheerios

shit in someone's Cheerios verb: synonym of piss in someone's cornflakes.

Verb

shit in someone's Cheerios (third-person singular simple present shits in someone's Cheerios, present participle shitting in someone's Cheerios, simple past and past participle shit in someone's Cheerios or shitted in someone's Cheerios or shat in someone's Cheerios)

(humorous, idiomatic, often, slang, vulgar) Synonym of piss in someone's cornflakes.
- That woman shit in her husband's Cheerios when she divorced him on their anniversary.
Synonyms:

piss in someone's cornflakes

third-person singular present	shits in someone's Cheerios
present participle	shitting in someone's Cheerios
past participle	shit in someone's Cheerios
past	shit in someone's Cheerios
past participle	shitted in someone's Cheerios
past	shitted in someone's Cheerios
past participle	shat in someone's Cheerios
past	shat in someone's Cheerios

From the breakfast food Cheerios. The term comes from the notion that defecating in someone's Cheerios would ruin their day.

What does shit in someone's Cheerios mean?: Shit in someone's Cheerios means synonym of piss in someone's cornflakes.
What part of speech is shit in someone's Cheerios?: Shit in someone's Cheerios is a verb.
What is the past tense of shit in someone's Cheerios?: The past tense of shit in someone's Cheerios is shit in someone's Cheerios.

Adapted from Wiktionary: shit in someone's Cheerios (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Pronunciation audio from Wikimedia Commons, each file under its own free license: En-au-shit in someone's Cheerios.ogg.

Cite this entry: “shit in someone's Cheerios.” Word.ws, https://word.ws/shit_in_someone%27s_cheerios. Based on Wiktionary, CC BY-SA 4.0.