A flask you keep in your back pocket to take out and pass around when shit gets boring. (So always) Good for church, school, work, family occasions, funerals ect.
Person 1: This church lunch is so boring!
Person 2: I know right? Lucky for you I always got me trusty booty flask!
A storage vessel for your most prized possession. A vial of your love juice. Also a term for balls
I gave Mary a drink from my nut flask last night.
When you are in a tent and the wind picks up moving the fly off the tent.
The tent was flasked in the howling wind.