jettisons
Dumps excess cargo
Jettisons means throws overboard or discards, especially to lighten a load or avoid danger.
Ships jettison cargo in storms; aircraft jettison fuel before emergency landings.
The word extends to abandoning anything burdensome: She jettisoned her old habits, The company jettisoned its failing product line.
The noun jettison refers to the act itself or the discarded material.
dump
Waste disposal site
scrap · shed · purge · unload · dispose · eliminate · reject · remove · declutter · castoff
expel
Remove forcibly from membership
fling · catapult · propel · eject · ejection · cargo drop · emergency release · bailout · ballast · lifeboat