a) A Character on the Red Skelton Show.
b) A ladies' man.
c) {From the Greek} "Bolivus Shagnasticus", roughly meaning, "One who floods" (It was the title of a roman dictator roughly around 120 AD.)
A man of low standards in reguards to sexual partners. A true Shagnasty will quite happily have sex with someone he finds physically repulsive. A shagnasty never admits to sleeping with ugly girls and to most peoplemay seem completly celabet.
"you hear about john?"
"what happened..?"
"He got caught at the old peoples home trying to organise a geriactric orgy."
"lol, that guy's a shagnasty"