thack

Verb (1)

thack (third-person singular simple present thacks, present participle thacking, simple past and past participle thacked)

1. (dialectal, transitive, obsolete except UK) To strike or thump (someone or something); to thwack.

Noun (1)

thack (plural thacks)

1. A stroke; a thwack.

Interjection

1. The sound of a thack.
   • Thack ! thack ! thack ! the heavy hunting whip came down upon the head and shoulders of Charles Dudley.1860, Albany Fonblanque, Jun., Hector Mainwaring; or, A lease for lives, Ward and Lock, page 205
   • Whishhh—THACK! The strap is a blur as it comes to meet my outstretched hand.2012, Campbell Bolwell, From the Mountaintop, Xlibris, page 33

Noun (2)

thack (countable and uncountable, plural thacks)

1. The weatherproof outer layer of a roof, often specifically thatch.
   • This outer layer was generically known as 'thack', but, owing to the fact that the vast majority of buildings in early times were covered with a thacking of straw or some similar material, 'thatch' gradually acquired its modern restricted significance of straw, or reed, heling.1952, L.F. Salzman, Building in England, page 223

Verb (2)

thack (third-person singular simple present thacks, present participle thacking, simple past and past participle thacked)

1. To cover a roof with thack.
   • The said day, it was represented that the thacking and covering of Houses houses in the towne with straw and hedder wes very dangerous, and rendered them obnoxious to fyre, and to the endangering of the saids houses and the neighbouring adjacent houses, and that a fatall evidence thereof, by...2023 [1871], John Stuart, Extracts from the Council Register of the Burgh of Aberdeen, Outlook Verlagsgesellschaft (Anatiposi Verlag), Books on Demand, page 365, 28 June 1716