Definition of all up
1
: at or very near an end : with death, defeat, or failure hopelessly or unalterably approaching
—used predicatively and in impersonal constructions with it
- by night it was all up for the trapped miners
2
: total inclusive of the weight of machine, necessary flight accessories, crew, passengers, and cargo
- a plane with an all up weight of 50,000 pounds
- the all up weight of the motor
3
: paid for at first-class surface rates but carried by air
- all up mail to larger cities
- all up systems being planned
