Boucle can be made out of a lot of different things, but I would say if you're not used to working with it try something acrylic, like Bernat soft boucle yarn. As an acrylic, it can be machine washed and is very durable.
cold sweat - the physical condition of concurrent perspiration and chill; associated with fear. fear, fearfulness, fright - an emotion experienced in anticipation of some specific pain or danger (usually accompanied by a desire to flee or fight)
What is sweat. WHAT IS SWEAT? Sweat is produced by sweat glands in the body, which produce a watery fluid and fluid containing substances such as proteins and lipids. We sweat from up to 5 million sweat glands located all over the skin on our body.