I've never had Tim Tam's myself either, but I'd heard that was/is the preferred/best way to endulge oneself's pleasure in the Tim Tam. I have a guilty pleasure of eating sandwich cookies in a similar fashion except you can't use them as a straw. I'll dip the cookie/biccie in the milk/coffee as far as I can and soak it until it's just about to melt off into the liquid and quickly slurp the whole thing into my mouth. Of course, I've misjudged the timing MANY a time and lost the cookie into the bottom of my cup LOL... Then I just get to go fishin for it after I'm finished dipping the rest...