go in on

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

1. To contribute money for a joint purchase.
   • 2008, Karen Tintori, Unto the Daughters, →ISBN:

     As they'd expected, Nino had turned them down when they'd asked their future brother-in-law to go in on the purchase.

   • 2011, James Shinn, Faith and Loving On the Way To Heaven: Self-Help for Sinners and Saints!, →ISBN:

     We were invited by the aunt (“Tia”) of my grandson to go in on renting a cabin in the woods outside of Flagstaff, Arizona for a week.

   • 2011, Steven McFadden, The Call of the Land: An Agrarian Primer for the 21st Century, →ISBN, page 116:

     We found a piece of land, and two partners, and went in on buying a small farm here.

   • 2012, Sunwon Hwang, Lost Souls: Stories, →ISBN, page 171:

     There are several of us who don't have a place to live and we thought we'd go in on a house together.

   • 2012, Richard Dolan, ‎Don R. Campbell, & ‎David Franklin, Buying U.S. Real Estate: The Proven and Reliable Guide for Canadians, →ISBN:

     When domestic partners or others go in on real estate together, it is always recommended that the partners prepare a plan that goes into action should one of them be incapacitated.

2. To participate in; to join.
   • 1981, James M. Henslin, Down to Earth Sociology, →ISBN:

     For example, one veteran officer advised a rookie, “The only reason to go in on a pursuit is not to get the perpetrator but to pull the cop who gets there first offa the guy before he kills him.”

   • 2010, Frederick Fenwick, Lasting Visions: With the 7th Marines in Vietnam, 1970, →ISBN:

     I was talking to the Marine Corps Recruiter and he told me that we could go in on the Buddy Program.

   • 2010, Jerold E. Brown, U. N. Peacekeeper in Cambodia, 1991-1992, →ISBN:

     When we went in on that reconnaissance, we literally were met by thousands of Cambodian civilians as well as military personnel from all four factions.

• gonion