T

| "Take an image" | Have your picture taken |
| "Tar water" | Liquor |
| "Teeth duller" | Hard tack |
| "They saw the Elephant" | Experience in combat |
| "Tight" | Drunk |
| "Toad sticker" | Expression for a knife, bayonet or sword |
| "To be mustered out" | To be killed in action |
| "Toeing the mark" | Doing the job |
| "Top rail" | First class |
| "To see the Elephant" | Meaning not to receive what you were hoping for; short-changed or cheated |
| "Traps" | A soldier's belongings or equipment |