(CNN) A British lawmaker has struck back against online trolls who criticized her for baring her shoulder in Parliament.

Tracy Brabin, an opposition Labour member of Parliament (MP) and shadow culture secretary, received abuse on social media after her shoulder became exposed during a debate in the House of Commons on Monday.

One Twitter user questioned whether her outfit was "appropriate attire" for Parliament.

Brabin responded by tweeting her surprise that anyone "could get so emotional over a shoulder."

The MP also wrote: "Sorry I don't have time to reply to all of you commenting on this but I can confirm I'm not.... A slag. Hungover. A tart. About to breastfeed. A slapper. Drunk. Just been banged over a wheelie bin."

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