rhu·barb 
/ˈru:ˌbɑɚb/ noun
plural rhu·barbs /ˈru:ˌbɑɚb/ noun 1 [noncount] : a plant with large green leaves and with thick pink or red stems that are cooked and used in pies, jams, etc.
▪ rhubarb pie 2 [count] US, informal + old-fashioned : an angry argument
▪ The coach got into a rhubarb with the umpire.
▪ rhubarb pie
▪ The coach got into a rhubarb with the umpire.
