Climategate 2.0: ‘[Mann] did pad his data a little’, says Jones: Jones writes to Ben Santer about the Michael Mann/hockey stick controversy
Jones: 'Mike did pad his data a little at the ends and beginning to get common periods, but only by a maximum of 10 years. This would make little difference. You can just average the lot and get pretty much the same result'
Perhaps 'padding' has some technical meaning?