frequent flyer

Noun

 * 1) A person who flies frequently on commercial airliners.
 * As he flew home every weekend, he considered himself a frequent flyer.
 * 1) Someone who is habitually a nuisance.
 * Drunks tend to be the most common frequent flyers.
 * 1)  A patient who frequents a health facility, with minor or malingering-type presentations.