I never heard of those, but now thanks to Cynth's inspiration, I will be eating some as soon as I find them. There's a Target on my way home so I'll have to see if they have them yet.
Not knowing what they are, I wanted to see what they look like:
...and then I also found this strange down under custom of biting off one end and sucking up your mug of hot coffee thru the Tim Tam...I gotta try this, it sounds great!