by Hal_Incandenza October 18, 2011
An unreasonably thrifty person. (Flint is a semiprecious mineral a relative of quartz, and the notion that the greediest person would keep flint shavings for economy).
by Anonymous August 13, 2003
by becky November 23, 2003
A sex act in which a man's penis is rubbed in a manner akin to vigorously rubbing flintstone to start a fire.
Guy 1: 'How was last night?'
Gay 2: 'Oh man....I went home with this chick and she skinflinted me like a pro'
Guy 1: 'You lucky F**K'
Gay 2: 'Oh man....I went home with this chick and she skinflinted me like a pro'
Guy 1: 'You lucky F**K'
by sexykitten93 October 20, 2014