Meaning of comer hostias en vinagre by hostias en vinagre

In the case of the mother who says that to eat there are hosts in vinegar, is a way out by the tangent with much pun, making clear his personal creed (usually atheist but authoritarian). There is what there is and to shut up. If not the lentils, if you don't want them, you leave them. It is a ironic-sarcastic expression, of a violent nature in its expression, indicating different things in different situations, (it is a daring to make mockery of a sacred host that is as if you ate the body of Kristo), is like sending the fucking fuck to V Eces, or the oracle that announces that you agree a time of physical and personal danger for you, but in others the expression is as in superlative and positive; A cosmic vinegar host would be the Big bang, for example. Lol