drain the lizard/dragon/snake
- verb to urinate. Colourful euphemisms popular with (invariably male) college students, hearty drinkers, etc. These expressions entered the slang lexicon of teenagers and college students in the late 1960s and early 1970s, although they are probably older, adult coinages on the pattern of siphon the python. It is not clear where in the English-speaking world the pattern originated, but it is thought by many to be typically Australian.