Duck test - Idioms by The Free Dictionary
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A form of logical, intuitive reasoning to deduce the nature of an uncertain thing or situation, usually in the absence or in spite of concrete evidence. Adapted from the saying, "If it looks like a duck, swims like a duck, and quacks like a duck, then it's probably a duck." You aren't sure whether he likes you? Just use the duck test—if he's showing you all the signs of being interested, then he most likely is.
References in periodicals archive
It's a great sight to see, as she teaches them all the basics of duck life, and it's good to know that our third pond - which has taken Gerry about five years of on-and-off excavation and landscaping - has finally passed the duck test
These include the extension of the northern bobwhite quail or mallard duck test
protocol to a two-generation study, makes these tests even longer and more costly, thus increasing international interest in the Japanese quail (45) and the modification mentioned in the EDSTAC report (1) for extending the current U.
All-rounder Craig White was the hero this time with Test-best figures of five for 32, including the first-ever golden duck Test
dismissal of Brian Lara.
The move to penalise athletes who duck tests
formed part of an anti-doping review produced by Britain's most successful Paralympics athlete.