Found one definition

  1.                 From WordNet dictionary, version 3.0:
                    

    hoot n. 1. a loud raucous cry (as of an owl) 2. a cry or noise made to express displeasure or contempt Synonyms: boo, Bronx cheer, hiss, raspberry, razzing, razz, snort, bird 3. something of little value; "his promise is not worth a damn"; "not worth one red cent"; "not worth shucks" Synonyms: damn, darn, red cent, shit, shucks, tinker's damn, tinker's dam v. 1. to utter a loud clamorous shout; "the toughs and blades of the city hoot and bang their drums, drink arak, play dice, and dance" 2. utter the characteristic sound of owls