The Collaborative International Dictionary of English v.0.48:

Thropple \Throp"ple\, n. [Cf. Thrapple, and see Throttle.]
   The windpipe. [Prov. Eng.] --Halliwell.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Thropple \Throp"ple\, v. t.
   To throttle. [Prov. Eng.]
   [1913 Webster]