Qantas' PR team is red-faced after a twitter publicity campaign went horribly wrong.

The campaign comes a day after unions and the airlines announced their deadlocked talks will now go to forced arbitration.

Qantas invited people today to tweet and tell them what their dream luxury inflight experience is, asking them to be creative.

But the QantasLuxury hashtag, which was the top trending topic in Australia at around 3.00 p.m. (AEDT) was quickly hijacked by people having a joke at the airline's expense.

"ALAN JOYCE now seeking an injunction to ground twitter due to #QantasLuxury fiasco", one person tweeted.

Other tweets, such as "did it, hated, never again" and "#qantasluxury is still calling Australia 51% home" and "Qantasluxury is what we used to get before crooks like ALAN JOYCE started running our national airline" summed up the general attitude of tweeters.

A Qantas spokewoman says the competition didn't get them the responses they were hoping for.