What is "to pocket an insult"

Pocket \Pock"et\, v. t. [imp. & p. p. Pocketed; p. pr. & vb. n. Pocketing.]

1. To put, or conceal, in the pocket; as, to pocket the change.

   He would pocket the expense of the license.
   --Sterne.

2. To take clandestinely or fraudulently.

   He pocketed pay in the names of men who had long been dead.
   --Macaulay.

   To pocket a ball (Billiards), to drive a ball into a pocket of the table.

   To pocket an insult, affront, etc., to receive an affront without open resentment, or without seeking redress. ``I must pocket up these wrongs.''
   --Shak.