Indigenous-Australian slang for the word "Witchetty Grub"(the large, white, wood feeding larvae of cossid moths).
Let's go down to the billabong so we can sniff some petrol and eat some stackle.
by Jackthetripprrr November 18, 2007
Stack something in a cute or attractive way.
The chocolate was stackled so good my mouth was watering.
by St. Clement December 16, 2014