A trichobezoar is a bezoar (a mass found trapped in the gastrointestinal system) formed from the ingestion of hair. Trichobezoars are often associated with trichotillomania (compulsive hair pulling). Trichobezoars are rare, but can be fatal if undetected. Surgical intervention is often required.
Hairball
Crutch
Charley horse
Superbill
Squawk 
Hoople 
Medicine man
Black salve