使つかい尽つくすConjugationMeanings1godan verb (-su)use up; exhaust; squanderEmphasizes complete consumption or depletion of a resource, often with a negative connotation when implying waste.給きゅう料りょうを使つかい尽つくしてしまった。I used up my entire salary.資し源げんを使つかい