From The Collaborative International Dictionary of English v.0.48: Thack \Thack\, Thacker \Thack"er\ See Thatch, Thatcher. [Obs. or Prov. Eng. & Scot.] [1913 Webster]
Thack \Thack\, Thacker \Thack"er\ See Thatch, Thatcher. [Obs. or Prov. Eng. & Scot.] [1913 Webster]