Wiktionary
goes native
vb. (en-third-person singular of: go native)
Usage examples of "goes native".
And as long as we're on the subject of childish acts, how would you define someone who forgets eight years of higher education and goes native despite twenty years of arduous fieldwork that consistently proves such activities are counterproductive to good research?
They go different ways: Leo stays British and covers that target, Praschko goes native and gets himself mixed up in German politics.