Kewk is the Americanized word for the swedish "kuk". Which is a rude word for the male sexual organ. Probably heard by brittish/american tourists in Sweden and picked up in their own language but spelled in a different way.
A Kewiy is a fortnite youtuber that has over 500 subscribers he streams on the weekends and has a popping personality everyone should check him out! He also is a very smart individual that has 300 iq plays on fortnite he is also being drafted by tsm as we speak!
Usually a multi-talented, light skinned, handsome guy with a massive penis. People have the tendency to tell him everything, including personal whereabouts without him even trying because he's smooth as fuck like that.
A phrase with many definitions but its main defintion is used to descibe annoying/rude people or inevitable/harsh situations,But can be used as an informal greating/gesture among friends.
Dorota "Kekystavey! That guy just spilt his drink down my dress" Krzysztof "I cant go on holiday to Mazurskie because the trains have increased their prices and i cant afford it anymore Kekystavey!"