The Tim Tam Slam, Tim Tam Shotgun, Tim Tam Bomb, or Tim Tam Explosion is the practice of drinking a beverage through a Tim Tam. Opposite corners of the Tim Tam are bitten off, one end is submerged in the drink, and the drink sucked through the biscuit. The crisp inside biscuit is softened and the outer chocolate coating begins to melt.
Ideally, the inside of the biscuit should collapse with the outside remaining intact long enough for the liquid to reach the mouth. Refrigerating or similar processes help to preserve the outside coating while allowing the inside of the biscuit to dissolve into a warm, creamy centre. The thicker chocolate coating on the Double Coat Tim Tam offers a more stable structure to prevent a premature collapse. The caramel centre of the Chewy Caramel variety helps to maintain the structural integrity of the biscuit for a slightly longer time, contributing to enhanced enjoyment. When the biscuit structure collapses it is typically pulled into the mouth.