[f. BRIM v.1] (See quot.)
1572. Mascall, Govt. Cattle, Hogges (1627), 274. To make them goe to brim, or take the boare, it shall be good to giue them barley.
1610. Guillim, Heraldry, III. xiv. (1660), 166. You shall say Boare goeth to his Brymme.
1727. Bradley, Fam. Dict., Brim, a Term relating to Swine; a Sow is said to go to Brim when she goes to Boar.