1 definition by Filth Flinging Greek
When a girl gives you a handjob from beneath. Often in a public place such as a movie theater or train, in order to obfuscate the act being perpetrated.
E.g. "Why is that guy sitting on that girl's hand?" "He isn't, she is giving him an underhandy and trying to hide it."
by Filth Flinging Greek December 28, 2013