A POSH restaurant which branded striking Tube staff “pig-headed” was trolled by angry trade unionists yesterday who booked tables in the names of Labour movement heroes only to cancel at the last minute.

The M Restaurants in the City of London and Twickenham attempted to make capital out of the nighttime working Tube dispute by offering a “Smoked duck or pig’s head starter with our compliments” at lunchtime on Thursday.

“At M we would like to say DUCK YOU to the PIG-HEADED UNIONS as they irresponsibly bring London to a standstill tomorrow,” an advertisement on the eatery’s website read.

“Come and relax on our ‘Wimbledon Terrace’ safe in the knowledge you beat the unions and their greed.”

But the fad soon attracted the ire of Londoners sympathetic to the strikes. By Thursday evening, slap-ups were reportedly being prepared for large tables in the names of Rosa Luxemburg, Antonio Gramsci and one Mr T. Driver.

A certain Charles Marx added a request to his online booking to “personally congratulate the owner or manager” on taking an anti-union stance.

The restaurant, which was founded by Martin Williams, formerly the head of the Gaucho chain, boasts £150 steaks on its menu.

M attracted publicity last month after it emerged that Labour frontbencher Chuka Umunna frequented its exclusive “drinking den,” which the restaurant describes as a place where guests can “get up to mischief.”

Some newspapers speculated that Mr Umunna’s membership of the drinking club may have been a factor in his withdrawal from his party’s leadership race.

By late on Thursday night Mr Williams’s Twitter account had been targeted by dozens of angry activists — but the besuited boss kept shtum.

When the Star contacted M, a member of staff declined to comment, saying the request had been passed onto management and Mr Williams, who did not respond.

M was not the only establishment to ramp up the anti-union rhetoric, as a pub near London Bridge blamed its closure on “the criminals on the trains holding us all to ransom.”

Workers threatened a boycott of the Market Porter in Borough Market, leading to a panicked apology from the pub’s manager Tony.

“The use of the word criminal was completely inappropriate and incorrect,” he wrote on Twitter.