bick·er 
/ˈbɪkɚ/ verb
bick·ers; bick·ered; bick·er·ing /ˈbɪkɚ/ verb [no obj] : to argue in a way that is annoying about things that are not important
▪ She is always bickering with her mother. ▪ They bickered about/over how to decorate the room.
▪ She is always bickering with her mother. ▪ They bickered about/over how to decorate the room.
— bickering noun [noncount]
▪ I can't stand their constant bickering.
▪ I can't stand their constant bickering.
