The controversial comments have revealed a sense of disgruntlement within the party and questions about the Labour caucus's discipline and leadership.
Mr Shearer has been under fire after he opened a speech to Auckland Grey Power with a story about a constituent who complained about a neighbour - a sickness beneficiary who went up a ladder to paint a roof.
Mr Shearer didn't say whether the story had been verified, if the man was in fact a sickness beneficiary, or the nature of his illness.
"I have little tolerance for people who don't pull their weight", Mr Shearer said in his speech.
Labour Party members have complained after Mr Shearer posted a copy of the speech on his Facebook page.
A string of comments from Labour stalwarts bagging his speech were posted online and Labour sources have said Mr Shearer will be taken to task at caucus tomorrow.
Caucus members would not comment before the meeting but agreed they would have a lot to discuss - including Mangere MP Su'a William Sio's public attack on Louisa Wall's gay marriage bill and allegations that Labour MPs actively dislike David Cunliffe.
- By Kate Shuttleworth of APNZ
