炸毛
An animal puffing up its body as a defense mechanism in a threatening situation in order to appear larger in size, to signal defensive aggression towards the enemy. In mammals, this is usually done alongside a [[bent back]].

Often accompanied by [[hissing]]. Though unlike hissing which is an offensive move almost always shown as a form of threat or [[angry|anger]], puffing up can be seen on other occasions such as [[scared|fear]] or [[surprised|shock]].

h4. See also

* [[cats are scared of cucumbers (meme)]]
puffing up