peter_out
1. [ verb ] end weakly
Synonyms: taper_off fizzle fizzle_out
Examples:

"The music just petered out--there was no proper ending"

Related terms: discontinue
2. [ verb ] use up all one's strength and energy and stop working
Synonyms: run_down conk_out run_out poop_out
Examples:

"At the end of the march, I pooped out"

Related terms: tire