tank up

verb3

1. •
   (US, Canada) To fill up (for example, a tank in a vehicle with gas, petrol, etc.).

   • The team was in ready mode; Gabe could feel it. They were scarfing up food, tanking up, knowing they would be freezing their asses off all day on that rocky ridge. — 2014
2. •
   (slang) To intoxicate oneself, especially with alcohol.

   • He was pretty well tanked up with extra dry Mumm and heady old Chambertin, and was drowsy and uproarious by turns. — 1883
3. •
   To install a tank.

   • Every valley was once tanked up for the purpose of irrigation, or the use of the herd,—indelible marks of reproach to succeeding generations, or at least to those by whom they have been governed. — 1816