budget deficit — the amount by which government expenditure exceeds income from taxation, customs duties, etc, in any one fiscal year
debt — A debt is a sum of money that you owe someone.
deficit financing — Deficit financing is the financing of government spending through borrowing rather than revenue.
in the red — any of various colors resembling the color of blood; the primary color at one extreme end of the visible spectrum, an effect of light with a wavelength between 610 and 780 nanometers.
pump priming — the spending of government funds in commercial enterprises, to stimulate the national economy.