Education Minister Ruairi Quinn has been accused of making a remark with a "sexist undertone" in the Dáil.
Mary Lou McDonald says there were sexist undertones to Deputy Quinn's remarks in the Dáil this lunchtime.
The Sinn Féin deputy leader and mother of two young children had been raising concerns about whether Labour knew of Alan Shatter's plans to resign.
"I never to be amazed at the warm affection and concern, the motherly concern, that you express for the well-being of the Labour Party," he said.
Deputy Lou McDonald took issue with Minister Quinn's response, saying: "If you think that referring to me as a mother, or motherly, to the cackles of your almost exclusively male audience would go down well with me or mothers who might be watching, then you're very wrong.
"I know a sexist undertone when I hear it."