Source : Webster's Revised Unabridged Dictionary (1913)

Tup \Tup\, v. t. & i. [Probably akin to top summit, head.]
   1. To butt, as a ram does. [Prov. Eng.]

   2. To cover; -- said of a ram. --Shak.

Tup \Tup\, n. (Zo["o]l.)
   A ram.

Source : WordNet®

tup
     n : uncastrated adult male sheep; "a British term is `tup'"
         [syn: {ram}]
     [also: {tupping}, {tupped}]