To tilt your head as if talking on the phone without using your hands, only its without a phone. Instead, it is just because you are physically incapable of holding your head up. It also looks really stupid.

To assure everyone that you'll definitely be somewhere, but to then not turn up, and with no explanation as to why.

What Summer Roberts called Marissa Cooper on The O.C.

Summer was only allowed to do this, when Alex tried to, she reprimanded him for it.

1. n. abbreviated form of 'cooperative.' used to describe the 'cooperatve play' mode of a video game.
pronounced 'coop' or 'co-op'
alternatively spelled 'co-op'

2. n. abbreviation of anything that begins with 'coop,' such as last names, eg, Cooper.

3. n. The MIT Bookstore, "the coop"

to fuck something up so bad that only the word "coop" is eligible to describe the magnitude of how bad that person fucked up.

When a fat sweaty guy that thinks he has game gets all up in your personal space, typically brushing up against you with his big gut in a very uncomfortable way.

A combination of the words: crap and poop used when you are trying to tell somebody that you do not feel well. Coop is used when you are not bullshitting for the purpose of a) not going to school b) ditching the clingy girlfriend or c) any other circumstance where you might try to convey a false sense of illness. Coop is used when you feel so shitty that you cannot decide on whether you want to say that you feel like “crap” the more gentle “poop” and end up slurring the words together, into coop.