bonus brother

plural bonus brothers

1. euphemisticA stepbrother.

   He had also found a love for jeepin’ in the desert with his bonus brother Jarrid.

   2024 November 7, “[Obituaries] Kyle James McLendon”, in Advertiser Democrat, volume 198, number 45, Norway, Me., →OCLC, page A4, column 1

   2 more examples

   Presden Neal, seated right, and his father, Mike, enjoy a day at the Columbus Zoo with Presden’s brother and sister, Nathan and Sierra, and his “bonus brother,” Brady.

   2023 March 12, “We are family: Deals find strength in each other to help son with disability”, in The Marion Star, Marion, Oh., →ISSN, →OCLC, page 1A, column 1

   Though we have not met in person, I was eager to get to know my bonus brother’s wife and daughter through this emblematic food of the Caucasus.

   2023 December 21, Jillian Simms, “Sharing the Flavors of Our Lives”, in Guilford Courier, volume XXVI, number 51, Guilford, Conn., →OCLC, page 37, column 2