archaic idiomatic term meaning "dollar bill", derived from the earlier idiom "greenback", so called because of the color of the reverse side of US currency.
"Dude wanted mucho frogskins, Man; I just didn't have the Dust."
by Bill Morgan May 25, 2008
slang for a single unit of American currency.
My friend was short of cash so I lent him 10 frog skins
by Stu Padasell August 30, 2007
Money, United States currency treasury notes.
Fork over the frogskins sucker!
by Howard Zend January 19, 2006