Verb
back on to (third-person singular simple present backs on to, present participle backing on to, simple past and past participle backed on to)
(transitive) Alternative spelling of back onto
People's backyards are much more interesting than their front gardens, and houses that back on to railways are public benefactors. John Betjeman
The estranged ego projects its own disorder on to society and expects the restructuring and integration of the self writ large, the society, to reflect back on to the source of consciousness. Stirner regards this flight from self as a form of suicide, the dissolution of identity and uniqueness. John Carroll
The world outside Twitter was great. I read books. I reconnected with people I knew from real life and met them for drinks in person. Then I drifted back on to Twitter. Jon Ronson