[bick.er] n [ME biker] (14c) 1: petulant quarreling: altercation
2: a sound of or as if of bickering
[2]bicker vi bick.ered ; bick.er.ing (15c) 1: to engage in a petulant or petty quarrel
2. a: to move with a rapidly repeated noise "a ~ing stream" b: quiver, flicker -- bick.er.er n