Obs. exc. dial. [prob. the same as bag lap, in Compl. Scotl., vi. 66.] ‘The front or flap of the small-clothes.’ Halliwell. (Common in north. dial.)

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c. 1600.  Rob. Hood (Ritson), xxiii. 58. Then he put on the old mans breeks, Was patch’d from ballup to side.

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