What you call any restaurant or fast food chain that you're not particularly fond of. Translates to "Eat 'n' Vomit" in Aussie slang, and a play on the "X 'n' Y" convention of naming eateries where X relates to eating, and Y is usually 'Go'.
Grab us a burger from the local Chew 'n' Spew willya?
by Choda Boy 57 March 16, 2008
Per author Bill Bryson, in Australia, a Chew 'n Spew is a roadside enterprise that offers both gas and dining. Thus, you can "chew" your food, and "spew" gas into your car.
"G'day mate. I've got a bit of a rumble in my tummy. I stopped at a chew 'n spew on my way in from Melbourne, and the soup doesn't seem to be agreeing with me."
by BuckGuy1 January 14, 2010