razor bump

plural razor bumps

1. informalplural normallydermatologyA skin eruption in the area of the mustache or beard, caused by irritation from shaving.

   For millions of men […] shaving is painful because they develop razor bumps on the face and neck from the closely cut ends of hairs that imbed themselves to irritate and scar the skin.

   1990 July 19, Lawrence K. Altman, “Health: For Some, 'No Beards' Is Painful Job Rule”, in The New York Times, New York, N.Y.: The New York Times Company, →ISSN, →OCLC, retrieved 04 Aug 2013

   Synonyms: folliculitis barbae traumatica, pseudofolliculitis barbae, shaving bump