Ankole-Watusi
noun
An·ko·le-Wa·tu·si aŋ-ˈkō-lē-wä-ˈtü-sē 
plural Ankole-Watusi or Ankole-Watusis
: any of an African breed of medium-sized cattle that have very large, long horns and often a small hump on the neck
A trio of Ankole-Watusi cattle made the Denver Zoo their new home Tuesday. 
Rocky Mountain News, 4 June 2008
Rocky Mountain News, 4 June 2008Note: Ankole-Watusi cattle are typically considered the same as Ankole cattle or derived from them.
Word History
Etymology
ankole + watusi (alluding to Tutsi breeders of the cattle in Rwanda and Burundi)
First Known Use
1985, in the meaning defined above