The name given to a female hip flask, to be filled with either wine, pimms, vodka or prickly pear juice.
Used to make cocktails mixing with Monster and Relentless.
Guy 1 : Dude, you need to whap out Flasketta!
Guy 2 : She's filled right up!
Girl 1 : Omg thats some tasty cocktail!
Girl 2 : All with the help of my good friend Flasketta!
Person 1 : Omg how did you get drink into this club!
Person 2 : I hid flasketta in my jacket pocket.