Crossword clues for two-timer
Wiktionary
                    two-timer
                    
                        
                
                                                                    n. A person who two-times another.
WordNet
                    two-timer
                    
                        
                
                                                                    - n. someone who deceives a lover or spouse by carrying on a sexual relationship with somebody else 
- a person who says one thing and does another [syn: double-crosser, double-dealer, betrayer, traitor]