What this puzzle is composed of? (not really), 15 letters
Chill out!, 9 letters
Chill!, 9 letters
Cool your jets!, 9 letters
Don't worry about it!, 9 letters
Easy, there! Easy!, 9 letters
Hey, calm down!, 9 letters
This won't hurt a bit..., 9 letters
Don't have a cow!, 9 letters
Start of a quip, 12 letters
Perfect!, 9 letters