1
                           general:: 
                            Phrase(s): thin someone down 
to make someone thinner or slimmer.  •  What you need to thin you down is less, not more.  •  The hospital dietitian tried to thin down the obese man., Phrase(s): thin down 
to become thinner or slimmer.  •  He stopped eating desserts and fatty foods so he could thin down.  •  I have to thin down so I can get into my winter coat., Phrase(s): thin something down 
to dilute a fluid.  •  You should thin this down with a little water.  •  Try to thin down this paint a little.
                        
                        
 
                        
                            McGrawhill's American Idioms And Phrasal Verbs