A judge’s use of an onomatopoeia has resulted in a new trial for a man convicted of violations related to a fatal crash.An appeals court has ruled the judge’s use of “thumps” to describe what the driver heard when he hit and killed a pedestrian with his truck gave rise to an appearance of impropriety, since the word only appeared in a victim statement that wasn’t part of the record.The victim’s sisters had given statements to the state’s attorney’s victims advocate that were …