Using a condom to only cover the tip of the penis, leaving the foreskin exposed. This is done to enhance pleasure for the male, by exposing the bundle of nerves where the foreskin attaches to the penis head. This provides the sensation of skin on skin, but allows the condom to function by catching the sperm. This does not protect against STDs and is not an approved use of a condom, but is used by many married couples who are unable to use other birth control methods and enjoy the skin on skin contact.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.

The act of tall women hunting for short men for sex.

Using short responses via text message to show you are mad

A financial term of making money when the markets are red going down to a lower price.
You make money when the market crashes and lose money when the markets are up . It’s backwards trading.

The acting of forgoing regular pants for short shorts.