From Longman Dictionary of Contemporary Englishoutspendout‧spend /aʊtˈspend/ verb (past tense and past participle outspent /-ˈspent/) [transitive] to spend more money than another person or organization In the Senate race, the Republican outspent his rival by nearly $2 million.→ See Verb table
Examples from the Corpus
outspend• Gingrich had consistently outspent rival candidates.• Unemployed or still at school, often unaccustomed to budget discipline, young people now have unprecedented opportunities to outspend their means. 