A feeling of disgust or dislike.
The word 'ick' is usually used to talk about things that are gross or make you feel bad.
Examples:
The ick made me not want to eat the food.
I don't like the ick on the ground.
The ick is all over the place.
The ick is so gross, it made me laugh.
There was so much ick, it filled the whole room.
The ick was so bad, I had to leave the room.