Query: What's "Shep"? --- was: Re: "Hot enough for you?" (1876, 1878, 1880)

[Cohen, Gerald Leonard]

 In the 1915 item of hash-house lingo in Barry Popik's message below, what does "Shep" mean?

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Original message from Barry Popik, 8/1/2006, 9:26 p.m.
...
28 March 1915, Dallas Morning News, pg. 4:
_WAITERS' SLANG._
_Oddities of Restaurant Talk._
...
<snip>
"Frankfurter and sauerkraut, good and hot," says the customer.
...
"Fido, Shep and a bale of hay," shouts the waiter, "and let 'em  sizzle!"

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