noun
1. : a fund raised from the sale of slush and other refuse (as formerly of warships) to obtain small luxuries or pleasures (as for the crew)
2. : a fund for bribing public officials or carrying on corruptive propaganda on behalf of special interests
a slush fund to corrupt legislatures, to purchase favors from public officers — W.O.Douglas
had the support of the trucking interests with the richest slush fund in the state — New Republic