Adding some more to Adalina's comment, "커야웤" might mean "귀여워":) 졸 피곤햌 > 졸라 피곤해 > 정말 피곤해 > very tired \^o^/

졸 .... is young man's word.. You might as well not memorize it. it means very 피곤해 is tired. 커야웤... I can't understand this. I guess he wrote wrong.