(bound form) base / foundation / (bound form) radical (chemistry) / (bound form) gay (loanword from English into Cantonese, Jyutping: gei1, followed by orthographic borrowing from Cantonese)
sham marriage, esp. a marriage between a gay man and a lesbian arranged in response to parental expectations of a conventional marriage (abbr. for 形式婚姻[xing2 shi4 hun1 yin1])
掰直
bāi zhí
to straighten / (slang) to turn a gay person straight
同妻
tóng qī
(neologism c. 2009) wife of a gay man (the man may marry to conform with social expectations, and the woman often enters the marriage not knowing he is gay)