go whacks

go whacks (third-person singular simple present goes whacks, present participle going whacks, simple past went whacks, past participle gone whacks)

1. (slang, archaic) To divide the profits from an enterprise equally; to enter into partnership.
   • 27 July 1909, D. H. Lawrence, letter to Louie Burrows:

     You may go whacks with me in that, if you like, and then we will go whacks in the profits – when they come

• John Camden Hotten (1873) The Slang Dictionary