  J2018-556, an X-shaped FR-I radio galaxy provides a unique opportunity to
discuss the formation scenarios for the extended structures seen in this class
of radio sources. An understanding of the origin of X-shaped source structures
has important implications for radio galaxy models as well as black hole-black
hole mergers. Guided by our ATCA radio continuum observations of J2018-556 we
discuss evidence in support of 'wings' forming as a result of a redirection of
backflows by asymmetric gas distribution associated with the host galaxy.
Formation models invoking interaction between backflows with asymmetric
environments seem the preferred model for X-shaped radio sources despite
apparent discoveries of X-shaped FR-I radio sources.
