In the USA they use a term "Passing", most of the time it's used and assumed to identify people who are accused of betraying/denying their African American heritage to "pass as white", in the bad old days it was apparently very common for mixed race individuals to pass themselves off as Italian, European or Welsh to get access to restricted resources and communities, even to marry.
But the term "passing" is not unidirectional, it's also used to describe someone who identifies themselves or connects with a culture when they really aren't part of it. Here you might think of Mitch Robinson or perhaps a Doug Pascoe aligning themselves with Indigenous culture, in that context the term passing works in the other direction.
In more modern time, the term is also starting to appear in social discussion of gender and sexuality.
In all cases it is derogative and divisive, yet it's still widely used and popular in racism debates, and in recent academic circles it's use has experienced a renaissance.
But the term "passing" is not unidirectional, it's also used to describe someone who identifies themselves or connects with a culture when they really aren't part of it. Here you might think of Mitch Robinson or perhaps a Doug Pascoe aligning themselves with Indigenous culture, in that context the term passing works in the other direction.
In more modern time, the term is also starting to appear in social discussion of gender and sexuality.
In all cases it is derogative and divisive, yet it's still widely used and popular in racism debates, and in recent academic circles it's use has experienced a renaissance.
"Ruck, ruck, ruck, ruck ....... Ruck, ruck, ruck, ruck"