It looks like the phrase is a bit fragmented. It seems to reference a viral or niche moment from 2021 involving a confrontation (“abuse”), someone’s expression (“face”), an unofficial recording (“bootleg”), and a consequence (“gets bench” — possibly benched/sidelined).
In the world of entertainment and dating (a common 2021 "lifestyle" topic), to be "benched" meant being put on the back burner. This terminology was frequently explored in lifestyle columns like Cosmopolitan. facialabuse facefucking bootleg gets bench 2021