/hoohp"dee dooh', -dooh", hoop"-, hwoohp"-, hwoop"-, woohp"-, woop"-/ , n. , pl. whoop-de-dos . Informal.
1. lively and noisy festivities; merrymaking: New Year's Eve whoop-de-do.
2. heated discussion or debate, esp. in public: a whoop-de-do over the new tax bill.
3. extravagant publicity or fanfare: the whoop-de-do of a movie premiere.
Also, whoop-de-doo .
[ 1935-40; orig. uncert.; see WHOOP ]