1.AdjectiveAble to be rolled off (and later, rolled back onto) the bed of a flatbed truck (flatbed lorry) in a motorized way, using a winch and cable.
"rolloff dumpster"
2.NounA sudden large uncommanded roll to the left or right experienced by an aircraft entering a stall, resulting from one wing stalling slightly before the other and exacerbated by the reduction in aileron control authority at high angles of attack.
3.NounA rolloff dumpster.
"There's so much junk to be removed that we ordered a rolloff."