From Longman Dictionary of Contemporary Englishrun out of steamrun out of steam (also lose steam)TIRED to no longer have the energy or the desire to continue doing something, especially because you are tired I usually just let her yell until she runs out of steam. → steam
Examples from the Corpus
run out of steam• The Damascus government has run out of steam after 30 years in power.• His passion is to say if the constitutional model has run out of steam, change it.• Mr Chuan was perceived to have run out of steam.• Fuel protest runs out of steam A national protest by truckers demanding cheaper fuel turned out to be a low-key affair.• The market rallied early in 1995, but then ran out of steam. 