burpless
adj.— «Researchers in Australia have received funding to develop more digestible feeds for cattle—“burpless” grass, in industry parlance—that result in less methane being produced as they are broken down in cows’ stomach(s).» —“Aussies cultivate ’burpless’ grass” by Peter Freed TerraPass (San Francisco, California) May 15, 2008. (source: Double-Tongued Dictionary)
Further reading
Penny in Savannah, Georgia, recalls that her father, a Navy veteran who served in the South Pacific, would say of someone who was clueless or didn’t know what he was talking about: That person doesn’t know if he’s punched, bored...
In Australia to chuck a sickie, means “to call in sick to work, especially when you’re not ill.” This is part of a complete episode.
Related
“Burpless” has also been used to market cucumbers supposedly engineered to not induce gas in the consumer.
“Burpless” always struck me as funny — as Luke mentions, I know it’s supposed to mean that the cukes don’t induce gas, but it always suggested to me that the cukes themselves were burp-free.