Vinegar 
To dream of drinking or seeing vinegar indicates you have a 'bad taste in your mouth' about a waking life problem. This may be a situation or a relationship. This problem is worrying you greatly.
Acid
To dream about acid means that you should be careful about making commitments or be confident about the commitments of other people. An acid dream can also signify that you are quite mad at someone.
To dream about drinking acid signifies that you have strong feelings that need to be expressed. If left inside, they can be harmful.
Mayonnaise
To dream of mayonnaise symbolizes hardship and distress that you are experiencing in life. It may also imply that someone is treating you with cruelty and contempt.
Salad Dressing
To dream of someone handing you a bottle of salad dressing suggests you will be surprised and delighted by a new connection in your life.
To dream of wishing your salad had dressing implies a desire to bring a little zest into your waking life; your life may have become mundane and left you feeling as though you are in a rut.
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