(derogatory) A rough, coarse, loud or uncouth person / (cryptozoology) A humanoid cryptid said to exist in parts of eastern Australia, and also reported in the Bahamas.

An exclamation of joy or enjoyment. / A battle cry.

To give a cry of "yahoo".

(Internet, informal) To search using the Yahoo! search engine.

(fiction) One of a race of brutes, who look and act similar to men, inhabiting the same land as the civilized Houyhnhnms.

(informal) An employee of the Internet company Yahoo!.

Alternative letter-case form of yahoo

(Internet, trademark) A web portal and search engine located at yahoo.com.

(Judaism) The anniversary of a person's death, usually a parent's, often marked by the lighting of a memorial candle and other rituals.

plural of yahoo