idiom

how to express this into the idiom ;

when you unable to get 'something' you said the 'something' is bad.

thanks

Yes, sour grapes is the best IMO.

But its synonyms given here:

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sour grapes (n)
Synonyms: resentment, jealousy, bitterness, ill feeling, envy, ill
will, scorn

http://ca.encarta.msn.com/thesaurus_561588523/sour_grapes.html
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are flatly contradicted by Garner, and I think he's right:

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sour grapes 
is one of the most commonly misused idiomatic metaphors.

It is not a mere synonym of envy  or jealousy. Rather, as in
Aesop's fable about the fox who wanted the grapes he could not reach,
sour grapes  denotes the human tendency to disparage as undesirable
what one really wants but can't get (or hasn't gotten). For example, a
highschool boy who asks a girl for a date and is turned down might
then insult her in all sorts of puerile ways. That's a case of sour
grapes.

But the traditional and correct use of the phrase seems to be on the
wane. Some uses are downright incoherent.

Garner, Modern American Usage
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inconsistent, incongruous, fickle
or worse:
lacking character, two-faced, double-dealing, double-crossing

Blowing hot and cold.


Incho

1. Maybe an *** or bully (boy).
2. You are a soft spot or a volunteer.
Migraine (head); agony; anguish is related to your mood, it is a result of your sufferings;
torment; torture.

I