blue-bird
n.— «Her quota production is correct, but since she was the first salesperson in the company, she got a lot of “blue-bird” sales that came to her because she was the first, and for a while, the only salesperson in the company» —by Tony Beshara The Job Search Solution Nov. 30, 2005. (source: Double-Tongued Dictionary)
Further reading
Secret signals on the job: Waitresses at some 19th-century restaurants ensured speedy drink service by communicating with a non-verbal code. One server took orders, then placed each customer’s cup to indicate exactly what the customer wanted...
Silence comes in many forms. Writer Paul Goodman says there is, for example, the noisy silence of “resentment and self-recrimination,” and the helpful, participatory silence of actively listening to someone speak. • The strange story...