1.NounAny of several types of truck used for road transportation of liquid fresh milk; usually, a tanker truck for bulk transport; formerly often a stakebody truck to pick up milk churns (milk cans); sometimes a truck to deliver milk bottles for home delivery.
2.NounAn unarmored or lightly protected truck-like vehicle, sensitive (fragile, exposed) to damage.
"You need to protect me: I am only a milk truck.; I see a column driving without armor support, only milk trucks.; It's only a milk truck, don't waste ammunition for the main gun.; No milk trucks were harmed during the making of this video."