Dine out on little money? That's vulgar (8)

I believe the answer is:

indecent

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(Other definitions for indecent that I've seen before include "Rude, improper" , "Immodest, gross" , "Gross, unbecoming" , "Lacking propriety" , "Offending against modesty, obscene" .)

I've seen this clue in The Guardian.

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