peter out

peter out

To dwindle, diminish, or fade away; to be used up or exhausted. His campaign started really strong, but following a series of scandals, public support for the candidate petered out and he never got off the ground. The light on my bike began to peter out, so I had to stop and change the batteries.
See also: out, peter
Farlex Dictionary of Idioms.

peter out

[for something] to die or dwindle away; [for something] to become exhausted gradually. When the fire petered out, I went to bed. My money finally petered out, and I had to come home.
See also: out, peter
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

peter out

Dwindle or diminish and come to an end, as in Their enthusiasm soon petered out. The origin of this usage is unknown, but one authority suggests it may refer to the apostle Peter, whose enthusiastic support of Jesus quickly diminished so that he denied knowing him three times during the night after Jesus's arrest. [Mid-1800s]
See also: out, peter
The American Heritage® Dictionary of Idioms by Christine Ammer.

peter out

v.
1. To cause someone to lose all energy; tire someone out: That long run petered me out. You'll get petered out if you work too fast.
2. To lose all energy; tire out: I petered out toward the end and lost the race.
3. To diminish slowly and come to an end; dwindle: The flow of water petered out as the valves were closed.
See also: out, peter
The American Heritage® Dictionary of Phrasal Verbs.

peter out

in. to give out; to wear out. What’ll we do when the money peters out?
See also: out, peter
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • gutter
  • gutter out
  • tail off
  • trail away
  • trail off
  • tail away
  • die away
  • tail down
  • waste away
  • do a fade