frequent flier n. a repeat offender; a recidivist; (generally) a person who regularly or habitually uses or takes advantage of a service. Etymological Note: A generalization of frequent flier, defined by the New Oxford American Dictionary as a person who regularly travels by air on commercial flights, esp. one who is enrolled in a promotional program for such travelers. (source: Double-Tongued Dictionary)
Further reading
Understanding the varieties of conversational styles can mean the difference between feeling you’re understood and being insulted. “High-involvement” speakers interrupt or talk along with someone else to signal their enthusiasm...
One of the most powerful words you’ll ever hear — and one of the most poignant — isn’t in dictionaries yet. But it probably will be one day. The word is endling, and it means “the last surviving member of a species.” The...