Twix Bar Bite
When your GF asks for a bite of whatever it is you are eating (Works best with Twix Bar) and says she is only going to take a small bit, but instead eats 3/4 of it leaving you with a dissatisfying nub of what you once possessed.
Sally: Lemme get a bit of your Twix.
Brian: Mmk
Sally:<Twix Bar Bite> Thanks babe.
Brian: O_o
Brian: Mmk
Sally:<Twix Bar Bite> Thanks babe.
Brian: O_o