1. [1900s] (Aus./US) the intestines of an animal.
2. [1910s] (Aus./US) the brain.
3. [1910s+] (Aus./US) the human stomach or its contents.
4. in drug uses.
(a) [1930s+] (drugs) the equipment used by a narcotics user for injecting themself.
(b) [1990s+] the equipment used for smoking crack cocaine, heroin etc.
[1940s+] (Aus.) to annoy.