By itself, it is used as a vulgar expression of any strong emotional reaction.

He closed his eyes and looked pained, "fishy, what a vulgar expression!"

In 1822, he cracked the code, to use the vulgar expression.

They have taught one another vulgar expressions in each of their many languages.

Using a vulgar expression, he responded that he did not.

Such music dignifies the vulgar expression "out of this world."

That is mainly for amusing people, but often, speeches contain vulgar expressions.

I don't know where you get these vulgar expressions from.

Beautiful and loveable in their childhood, they all, to use a vulgar expression, "turn out badly."