o‧ver‧stretch /ˌəʊvəˈstretʃ $ ˌoʊvər-/
verb [transitive] to try to do more than you are able to, or to use more money, supplies etc than you have:
an overstretched social services departmentoverstretch yourself Problems only arise when people overstretch themselves. [TahlilGaran] Dictionary of Contemporary English ▲