load up

verb6

1. •
   To fill (a vehicle, vessel, room, etc.) with a load of cargo or similar.

   • We loaded up the wagon with supplies.
2. •
   To load (things) as cargo or similar.

   • Q: What should we do with these other boxes? A: Load 'em up, same as the others.
3. •
   To receive a load of cargo or similar.

   • The wagon halted for an hour to load up with supplies.
   • Let's stop at the off-licence and load up on booze and snacks.
4. •
   To load (software) fully into memory.

   • The game loaded up and he instantly grabbed the game controller. — 2014
5. •
   To fully load (a weapon).
6. •
   (slang) To intoxicate oneself with alcohol or drugs; to get drunk or get high.

   • John Bender (Judd Nelson): You load up, you party… Brian Johnson (Anthony Michael Hall): No, we get dressed up, but we don't— we don't get high. — 1985