James Evans, a chemistry teacher, claimed unfair dismissal from his pounds 19,000-a-year job after he was alleged to have made the remark when he failed to pronounce the 15-year-old's name as he called out the register. It was alleged that he smirked, expecting the class to laugh, but was sacked for gross misconduct after the girl reported him.
Mr Evans, of Woolton, Liverpool, told the tribunal in June that Peter Barnes, head of Gateacre Comprehensive School, deliberately 'set out' to sack him.
He claimed Mr Barnes had 'put words into the mouths' of pupils and had flouted disciplinary procedures.
A remedy hearing will be held to agree a settlement.