When you try to finger a girl for the first time and instead finger her ass hole.

fingers that have been affected by tequila; a fancy way to say “drunk texting”

The index finger held up by douchebags in pictures

The finger in the middle

When all your friends had a great night, but you only minorly enjoyed the evening.

The Ring isn't made by the dark lord Sauron, but is used for measuring your own nipple and areola size. Measure using your thumb and pointer finger and make their tips meet so you form a circle. Stuff your hand down your shirt and make the circle smaller or bigger depending on the size of the areola and then take your fingers back out to see the results. Foolproof!

The rule is a game, were you have to make an OK sign with your hands below the waist; If someone sees it then you can do one punch to them. If the person who sees it puts their finger in the hand and gets it out without being caught, they get to punch you 5 times.