home-wreckern.
/ˈhəʊmˌrɛkə/, U.S. /ˈhoʊmˌrɛkər/ depreciative.
A person who ruins a family, home, or relationship; spec. a person who is blamed for the break-up of a marriage or similar long-term relationship, usually because of his or her affair with one of the partners; a person regarded as of this type.
ΚΠ
1878 Wonderful London 406 It is for such as these that the home-wrecker who keeps a loan-office, and calls himself a money-lender, is ever on the look-out.
1905 Metrop. Mag. Mar. iv. 74 Hans Bélart..was very frank in his disclosures of the affair, treating Wagner as if he were the veriest ingrate and home-wrecker.
1939 Times 16 Mar. 14/5 The luckless young man who has been asked to pretend that uncontrollable passion has made him a home wrecker.
1960 S. Kauffman If it be Love ii. i. 123 She certainly didn't seem a luscious home-wrecker.
2005 Sugar May 83/3 She came round to my parents' house and started screaming ‘home-wrecker’ and threatening to kill me.
This entry has been updated (OED Third Edition, September 2011; most recently modified version published online March 2022).
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n.1878