when you're too poor to afford a dildo so you have to improvise and just stick your fingers in your vagina.

Something on your hands that never seem to fing...

Hideous. Really, really ugly. Although the precise origin is unknown, fingers is frequently used in inner city South London, usually to describe a shockingly unattractive woman.

An Expression when greeting a friend, when tickling the fingers in an hand shake type fashion.

"three fingers" (3 fingers) :

Term used to describe the action of pressing the ALT-CTRL-DEL keys, all at same time, on a computer keyboard, in order to get to the screen where you can shutdown programs that stop responding.