1. 
   On And Off
   On and off is London Cockney rhyming slang for cough.
   Found op http://www.probertencyclopaedia.com/browse/ZO.HTM
   
   
2. 
   On And Off
   On and off is London Cockney rhyming slang for cough.
   Found op http://www.probertencyclopaedia.com/browse/ZO.HTM
   
   
3. 
   onandoff
   1) Intermittently 2) Like some relationships 3) Now and again 4) Occasionally
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/onandoff/1
   
   

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