backstreet

adjective2

1. •
   Associated with neighborhoods on back streets, often in older neighborhoods, with poorer residents.

   • She's been living in her uptown world / I bet she's never had a backstreet guy / I bet her momma never told her why — 1983
2. •
   (figurative) Done in poor and unsanitary conditions, secretly and illegally; back-alley.

   • The results of self-induced and backstreet abortions come to our hospitals for the damage to be put right. — 1965