From Longman Dictionary of Contemporary Englishfork (off) left/rightfork (off) left/rightTTto go left or right when a road divides into two parts SYN turn Fork left at the bottom of the hill. → fork
Examples from the Corpus
fork (off) left/right• At the first fork they must go left and at the next fork right and so on until they were challenged.• Then with a wave she forked left and was gone.• After 50yds fork right on to a track which climbs up Triscombe Combe. 