Social media users are calling on John McGuirk make good on a pledge he made to fellow No campaigner Keith Mills.
On March 31, Mr McGuirk tweeted that he would "never take a political job again" if Dublin Central won 75% of the vote in the referendum to repeal the Eighth Amendment.
He said: "Ok, tell you what, if Dublin Central is 75% yes on the day (3-1), I will never take a political job again and recommend you for any position. And if the overall vote in Dublin is 80% yes (4-1) I'll donate a grand to a charity of your choice. You're just wrong. Flat wrong."
The Dublin Central constituency has in fact closed at 76.51% in favour of Yes, just over the 3-1 margin.
His comment came after Mr Mills suggested that "traditionally conservative" Dublin Central was likely to vote 3-1 in favour of Yes.
He said: "My sources are good. Even the traditionally conservative Dublin Central likely to be 3-1 Yes."
Twitter users have been quick to remind Mr McGuirk about his suggestion and are calling on him to follow through.
So... John, you still up for this?
— Brendan Halpin 🏳️🌈 (@Feadpool) May 25, 2018
Dublin Central is in and it's 76% pic.twitter.com/vWJuEKLq7O
— 🎈🤡 Dublin's New Night Mayor! 🔪🦀 (@Bubblenoma) May 26, 2018
what was that you said???...you'll never take a political job again...righty ho...#RepealedThe8th pic.twitter.com/zo2Cu9w6A1
— mⒶryteatowel (@maryteatowel) May 26, 2018
— Bri the F1 Guy (@BrianF1Man) May 26, 2018