What is "low ball"


A lot of ads say something to the effect "no lowballers please". So I'm curious what people think is "lowball".

I'm looking for a percentage from people. I'm thinking less than 75% of asking price is where "low ball" kicks in, but I'm interested in what the general consensus is (if there is one).
jaxwired
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question, there is an add for mcintosh mc501 - recently they go for about 2,800~3,000 on audiogon...
the add: "McIntosh MC501's 1 year, mint, original box & manual from dealer, 40% discount! $6,600"
if i would offer 2,800 - is it considered "low ball" ?
Go ahead, make your offer. Please report back to us. I would be curious to know how it works out for you.