The emotion felt when you walking along and someone with really sweaty arms brushes past any part of your skin
usually happens on a hot day and the result is you feel like screaming and shouting at the dude who may have done it accidently but you don't care - cos it was gross.
Plus you don't feel like wiping it with your hands or shirt... cos then you would just be spreading the sweat somewhere else.
It was a hot day and Lucy was on the bus holding to the handle when an overweight sweaty gentlemen came onto the bus. he tried to edge past Lucy but due to the nature of his size, brushed her arm as he went past. Hence lucy got a nice healthy portion of sweat all over her arms, and a sweat cringe ensued.