I wonder if any Harry Potter/Jaguars fans ever thought of this nickname for our epic bust QB for the last three years. It fits him to a tee:
"A boggart is an amortal shape-shifting non-being that takes on the form of the viewer's worst fear. When facing a boggart, it is best to have someone else along, to try to confuse it, since facing more than one person at once would make it indecisive as to what form it must take, usually a mixed-up amalgam of the victims' fears. Because of their shape-shifting ability, no one knows what a boggart looks like when it is alone, as it instantly changes into your worst fears when you first see it."
If that doesn't describe Blaine Gabbert, I don't know what does.