To bestir oneself, to be active. Rare.
1843. As for Harvest, let him shirk for himself, said a fourth, hes a poor, barebacked animal, and is of no more value than an old rain-spout, accompanying his words with a copious commentary of an aquatic nature.Cornelius Mathews, Writings, p. 71.
1850. He sends him off next morning to shirk for himself.The same, Moneypenny, p. 157.