A dolgier is a do-anything soldier.
From _Lush Life_ by Richard Price (2008), p.32
(probably pronounced dol-jur)
"But I can't do it without my dolgier." Little Dap slow-poking him in the chest. "You know what I'm saying?" (Price 2008: 29 - in the above description 'dol' is italicized for some reason).