A term often used after someone has admitted their undying love for you, plans to move in with you and is willing to leave their boyfriend/girlfriend for you, but you are too smart to fall for these false promises and cannot reciprocate the love they feel for you.
Particularly popular in London and surrounding areas including St. Albans, Luton and KENT.
1: "Baby, I love you, you mean the world to me. I wanna spend the rest of my life with you. I'll move in with you and leave my girlfriend for you. You're amazing"
2: "OKAY cool"
(syllables can be extenuated if you're feeling particularly ghetto, for example: "OKAYYYYYYYYYY COOOOOOOOOOL")
To add drama to a situation. It could be in a really boring place like Yates with your 'friends' when something really uneventful happens or maybe when you're online and your ex starts talking to you all of a sudden.
*group of friends are sitting around a table and a waitress comes over to collect empty plates. Waitress struggles and almost drops the plates*
*someone accidentily goes on facebook chat and clicks online to their 'people I don't want to talk to' group.. 2 seconds later an ex pops up typing your name in capitals*
Crazy ex: BOB!!