1
general::
In an offended manner, angrily, as in When he left out her name, she stalked out in a huff. This idiom transfers huff in the sense of a gust of wind to a burst of anger. [Late 1600s] Also see IN A SNIT.
American Heritage Idioms
2
general::
Phrase(s): *in a huff
Fig. in an angry or offended manner. (*Typically: be ~; get [into] ~.) • He heard what we had to say, then left in a huff. • She came in a huff and ordered us to bring her something to eat.
McGrawhill's American Idioms And Phrasal Verbs