To go it

Go Go, v. t. 1. To take, as a share in an enterprise; to undertake or become responsible for; to bear a part in. [1913 Webster]

They to go equal shares in the booty. --L'Estrange. [1913 Webster]

2. To bet or wager; as, I'll go you a shilling. [Colloq.] [1913 Webster]

{To go halves}, to share with another equally.

{To go it}, to behave in a wild manner; to be uproarious; to carry on; also, to proceed; to make progress. [Colloq.]

{To go it alone} (Card Playing), to play a hand without the assistance of one's partner.

{To go one's way}, to set forth; to depart. [1913 Webster]