Slang for Cocaine in the UK and originated from the word "hoover" that is a description of how cocaine is consumed.
"Lemme grab an 8 ball of koover"
october 1st is national koover day . everyone has to talk to koover and give her lots of money
" oh my god it's koover day ! time to send koov all of my money "
koover day : a day everyone worships and adores and posts koover on their gram
omg im giving koover a million euro for koover day