1. 
   MGR
   Merry-Go-Round, a coal train which loads and discharges whilst moving at slow speed.
   Found op http://www.scot-rail.co.uk/page/Glossary
   
   
2. 
   mgr
   abbreviation: manager
   Found op http://www.apscharts.com/abbrev.html
   
   
3. 
   MGR
   Manager
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
4. 
   Mgr
   In the Roman Catholic Church, abbreviation for Monsignor. ...
   Found op http://www.encyclo.co.uk/local/20688
   
   
5. 
   MGR
   'Must Get Rats!' A mutation of GMR. MGR is even more difficult to resist than GMR, because you have no resident rats to snuggle and temporarily cure the symptoms!
   Found op http://www.encyclo.co.uk/local/21738
   
   
6. 
   mgr
   1) Abbreviation
   Found op manager 2) Ball club v.i.p. (abbr.) 3) Ball club v.i.p.
   
   

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