To dream of a dump truck represents decision-making that is focused on a emotional or situational payload. Decision-making or a direction in life that is preparing a lot of something for someone else. Possibly a reflection of a major change or big consequences to come. Feeling that a big change or transfer of some kind is very important to carry out.
Negatively, dreaming of a dump truck may reflect a wish to “dump” a huge problem on someone else. It may also reflect your feelings about yourself or others getting ready to waste everything you have at once. A lot of anger, guilt, or responsibilities that you feel is important to “drop off” on someone else. A large “transfer” or change that you are exhausting yourself with.
Example: A woman dreamed of seeing her fiancee getting into a dump truck against her wishes. In waking life she felt that her fiancee would keep wasting all their money on drugs, alcohol, and getting into trouble with the law. The dump truck in the dream may have reflected the woman’s feelings about her fiancee tendency to be very wasteful with big actions. “Carrying away” all their money to waste in one big drug or alcoholic binge.
Example 2: A young girl dreamed of dump truck about to drop off gravel. In waking life she was very ill and was expecting someone from school to drop off all her homework and school work for the next 2 weeks. The dump truck in this case may have reflected her feelings about having a huge load of homework dropped off at once because it was very important to have to keep up with school work.