to express the emotion of immense fear or to express immense pressure and could mean tense and or worried.
the past tense for scay would be scayed and present tense is scay and future tense would be scaiy.
it is commonly used by the mentally impaired and the tarnished or the R key just stopped working on your keyboard
scay is also word that's best suited when paired with an image of a crying cat.
it was so scay, I was scayed for you, I bet it would be scaiy, it must be so scay, it was almost scay,