fouling one's own nest

Harming your home

Fouling one's own nest means damaging or undermining the place, group, or situation that provides you with security or livelihood.

The expression draws from the observation that birds instinctively keep their nests clean, so fouling one's nest suggests behavior that goes against basic self-interest.

Someone who publicly criticizes their own company, spreads rumors about family members, or pollutes their own community is fouling their nest.

He fouled his own nest by badmouthing the firm that had employed him for twenty years.

Related

airing dirty laundry · pollution · contamination · hypocrisy · exploitation · dishonor · abuse of power · betrayal · duplicity · burning bridges · recklessness · habitat destruction · disgrace · fraud · inside job · infamy · short-sightedness · self-sabotage

Opposites
care for one's own domain

fouling one's own nestkeeping house

Managing domestic affairs

homemaking · nesting · housekeeping · stewardship · home improvement

self-interest and prudence

fouling one's own nestlooking out for number one

Prioritizing personal gain above others

enlightened self-interest · self-preservation · playing it safe · hedging one's bets · thinking ahead

loyalty and betrayal

fouling one's own nestcircling the wagons

Unifying against outside attack

closing ranks · tribal loyalty · omertà · having someone's back · blood is thicker than water

Family

foul, fouled, fouls, foully, foulness, fouler, foulest, one, ones

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Negative · Everyday, not technical · Rated G