run out of steam

blow off steam

To vent; to talk or take action (especially in a ranting or unrestrained way) so as to relieve stress.

break into a run

To start running.

common run

Ordinary persons, things, or events.

dry run

A practice or rehearsal; especially, one that goes through all the motions of a physical process but without the raw material or workpiece present.

dummy run

A trial or practice before the real attempt.

employ a steam engine to crack a nut

To carry out a simple task in an overcomplicated manner.

good run

Success over an extended period.

head of steam

A significant amount of energy, vigour or momentum, sufficient to make progress or succeed in a task.