The Collaborative International Dictionary
                    go-to-meeting
                    
                        
                
                                                                    go-to-meeting \go-to-meeting\ adj. best-looking; -- used of clothing; as, her Sunday-go-to-meeting clothes. [prenominal]
Syn: good, Sunday, Sunday-best, Sunday-(prenominal).
Douglas Harper's Etymology Dictionary
                    go-to-meeting
                    
                        
                
                                                                    "suitable for use in a church or on Sundays," 1790, especially of clothes but the earliest recorded reference is to music.
WordNet
                    go-to-meeting
                    
                        
                
                                                                    adj. used of clothing; "my good clothes"; "her Sunday-go-to-meeting clothes" [syn: go-to-meeting(a), Sunday-go-to-meeting(a)]