turn sb over the perch

bidirectional counter(forward -back-ward counter) Bon-Encontre Broekman choiceout Connor Ralph coregister cross call current-voltage curve discothequenik equidistant projection space information flow-rate kalmus meanour parahydroxyphenylphenylhydantoin situation plan sphaerocarpuss stuffing box bearing tagging off taymyr peninsulas three-slit interference