Green’s Dictionary of Slang

to get away with something, to go free, to do well.

1942		Z.N. Hurston ‘Story in Harlem Sl.’ in Novels and Stories (1995) 1010: Stroll: doing something well.
1990		(con. early 1950s) J. Ellroy L.A. Confidential 56: Squeal in front of your friends and you stroll.