Reference to Fight Club, whose two first rules were both 'Do not talk about Fight Club'. May be used for anything secret, particularly an organization or group of some sort.

The most destructive phase ever spoken, believed to be created by a group of youths during a game of coins way back in 2007, “1 and 2” has recently been discovered by Ukrainian militants and intelligence informs us that they are planning to use it at the Beijing 2008 Olympics to cause a mass state of chaos and havoc.

It has taken years for scientists to do all the studies to thus prove that 1 + 1 is actually 2. After a long and hard (lol, long and hard) test involving one apple, than adding another. The tests were proven that 1 + 1 is in fact, 2.

When a math is close to, if not OBVIOUSLY easy

or you just don't want to help the person finding the answer

being sad to close a chapter
but also happy to open a new one
its what happens sometimes in life
and so many have gone through this before me
its manageable achievable desirable

#1 or #2 -Usually younger ones say #1 or #2 as an alternative for pee and poop. #1 is pee and #2 is poop. This is how the little ones communicate with their parents what they have to do in the bathroom.

Used when checking a microphone for proper function. Can also be used as a enduring greeting for Dubbstep.