Anniversary outline: f-b-ish-s

Can anyone tell me what f-b-ish-s represents in Anniversary? I assume that because the "f" precedes a consonant, it must represent "for-,' but a search in the dictionary under words beginning with "for-" did not lead to anything resembling this outline.
Here is the context (Junior O.G.A. Test, September 1944):
Dear Madeline, Now it can be told that I was in the thick of it at Salerno. Also that I shall receive a little "trinket" which will be sent to you for safe-keeping. I think I will enjoy wearing it on parade some day, and while relating my doughty deeds in this war--with a few F-B-ISH-S, naturally.

(by Bruce E. for group greggshorthand)

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