A soldier or a subordinate civil officer who executes orders of a superior without protest or pity (sometimes applied to bailiffs, constables, etc).
To search using the Yahoo! search engine.
To give a cry of "yahoo".
A battle cry.
An exclamation of joy or enjoyment.
A rough, coarse, loud or uncouth person
A humanoid cryptid said to exist in parts of eastern Australia, and also reported in the Bahamas.