feed the dragon

chase the dragon

To chase after the promise of a continually fulfilling high from an addictive substance.

chicken feed

A very small or insignificant quantity, especially of money.

feed off

To get stimulus from (an external object).

feed the fire

Synonym of add fuel to the fire.

feed the meter

To place coins into a parking meter or gas meter.

feed two birds with one scone

Synonym of kill two birds with one stone.