"Ring around the collar"
| Reference.com [PAR] According to Clorox, ring around the collar stains on white shirts can removed by 
pre-treating the stain with mild bleach, followed by a hot water wash with 1/2... [DOC] [TLE] The Laundress - Combatting Ring-Around-the-Collar [PAR] Many men deal with sweat stains around the collars and cuffs of their business 
shirts.