The act/acts of messing around, and/or doing something purposely to annoy someone. More so, someone who gets annoyed very very very very very very, VERY, easily!
"Quite frankly, this is SHAMEFUL! I'm trying to calculate these scores, and we have people here doing COOCKOO-Business!"
Invented by the man, the myth, the legend, Clink123, this phrase is used to symbolize an act in which is performed is considered stupid, without-thought, or careless. Commonly used when this act is done purposely, or thoughtlessly.
"Quite Frankly, this is shameful! I'm trying to Calculate these scores and we have people here doing Coo-Coo Business!