To fart in a car full of people, crank the heat for maximum effectiveness.

To test if an item of already worn clothing is suitable to wear out. common amongst students who cant be bothered to do their washing.

Flipping through the deck over and over while playing the card game Solitaire even though there are no more moves available, denying that you have lost even though you already know it.

The obnoxious, headache-inducing cologne cloud that surrounds a beefy, tight-Armani-shirt wearing dude.

The practice of recycling, or being green, only when convenient. A person who only recycles when it is convenient to do so.

A condition in which a person's face becomes too relaxed from starting the same thing too long (watching TV).

Symptoms are: open mouth, dropped jaw, eyes glazed over and occasional drooling.

Singing out loud while listening to music with your headphones on. Whereas the singer gets the benefit of the music, those unfortunate to be standing nearby are subjected to an unaccompanied (and invariably crappy) rendition of the song.