Somehow it reminds me of the related expression "to show flesh".
"Y'all was excited about Christine Keeler and that whole sex thing. Hell, if my pants split today, they would have to give me more money. You don't git paid if you don't show flesh," he says, and laughs without rancour. Banned from television and major concert halls, he was relegated to appearing in the occasional rock theatre show and scratching away at the northern variety circuit. http://www.telegraph.co.uk/culture/4708 ... Proby.html
The times are changing, eh? Today the ones that don´t show flesh are the relegated ones!