Tracy Brabin's off-shoulder dress has passed £17,000 on Ebay after the MP decided to auction off the garment.
Shadow Culture Secretary Brabin, 58, sparked a shopping frenzy with the £35 black one-shouldered midi dress she wore to parliament that led to her being branded a "hungover slag" by trolls.
The Labour MP and former Corrie actress was bombarded with abuse over the frock, with trolls branding her a "tart".
Brabin hit back with a sassy tweet declaring she is entitled to wear whatever she likes.
She decided to put the LBD on Ebay to raise money for Girl Guiding.
So far 160 people have placed bids with the top amount pledged £17,200.
The pleated shoulder pencil dress which sparked the furore briefly sold out on ASOS.com but is now back in stock.
Brabin, who replaced murdered MP Jo Cox, hit out at the trolls in a scathing message defending her outfit choice.
Labour MP's furious slap-down of trolls calling her a 'slag' for her dress choice.
She wrote: "Hello. 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.
"Who knew people could get so emotional over a shoulder..."
He tweeted: "Brilliant retort Tracy. Omg if only they were as vocal about the behaviour, misogyny, racism, falling asleep and warped policies of the ruling govt as they are about revealing one shoulder."
She had been addressing the house to criticise the government's plans to order journalists to leave before a briefing on Boris Johnson's latest Brexit plans.
