subs. phr. (old).—An Irishman: in contempt. [NARES: ‘one wearing the hair matted together, as the native Irish in times past.’]

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  1612.  BEAUMONT and FLETCHER, The Coxcomb, ii. 3.

                        Yet thus much ere ye go,
Sirrah THATCH’D-HEAD! would’st not thou be whipt, and think it justice?

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