飞短流长

to spread malicious gossip

length / long / forever / always / constantly

chief / head / elder / to grow / to develop / to increase / to enhance

to fly

short / brief / to lack / weak point / fault

to flow / to disseminate / to circulate or spread / to move or drift / to degenerate / to banish or send into exile / stream of water or sth resembling one / class, rate or grade