1639 T. de Gray ii. vi. 106 Holding up his Head with a Drenching Staffe.
1698 (Royal Soc.) 20 50 If it be for any Cattel, it must be..given with a Drenching Horn.
1737 J. Ozell tr. F. Rabelais II. 64 A Drenching-horn serves to convey a Draught into a Horse's Mouth.