But those were just the tip of the iceberg, with the shadow culture secretary also variously described as a "slapper", a "tart" and other sexist insults, with Twitter user Lord Haw-Haw posting: "Looks like she was banged over the wheelie bin at the back of the pub last night".
Tweets flooded in criticising the MP for her outfit, many questioning if it was "appropriate" for parliament while others made cruel comments about her character and appearance.
She had tweeted: "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".
Appearing on ITV's Lorraine, Brabin expanded on her experience of having her outfit targeted by Twitter trolls.
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She had got up to raise a point of order about the "really important question" of transparency after Downing Street barred certain journalists from a No.10 briefing, sparking a mass walkout.
On Wednesday, Brabin responded with a tweet listing a selection of the criticisms she had received.
Women, men have applauded the Labour MP for an "amazing retort", however, there still remain people who did not stop after her reply and repeated their disagreement with Brabin's choice of the outfit of Parliamentary debate.
Tracy Brabin said the media's focus on her off-the-shoulder top in parliament is a ideal example of everyday sexism.
Her response has since gone viral, liked by more than 4,000 people on the social media platform.
"I do think it's slightly absurd, but we're talking about shoulders which, in the scheme of things, when there's so much else to discuss, it does feel slightly silly", she said.