arse arse /ˈɑːrs/

noun

1. [Canadian, British, Vulgar] Vulgar slang for anus  ( arse [Canadian, British, Vulgar] , arsehole [Canadian, British, Vulgar] , asshole [ N. American, Vulgar] , bunghole [Vulgar] , butthole [ N. American, Vulgar] , wazoo [American, Vulgar] )
   vulgar slang for anus
   
2. [Canadian, British, Vulgar] The fleshy part of the human body that you sit on  ( arse [Canadian, British, Vulgar] , backside , bum [Informal, British] , buns [Informal, N. American] , butt [Informal, N. American] , can [Informal, N. American] , derriere , fanny [Informal, N. American, Vulgar] , fundament , hind end , hindquarters , keister [ N. American, Vulgar] , nates , posterior , prat [Vulgar] , rear [Informal] , rump , stern , tail end , tooshie [Informal] , tush [Informal, N. American] , ass [ N. American, Vulgar] , behind , bottom , buttocks , rear end [Informal] , seat , tail [Informal, N. American] , bahookie [Dialect, Informal, UK] , botty [Informal] , derrière , heinie [Informal, American] , jacksie [British, Vulgar] , jacksy [British, Vulgar] , keester [ N. American, Vulgar] , patootie [Informal, American] , tushy [Informal, N. American] )
   the fleshy part of the human body that you sit on
    He deserves a good kick in the butt
   he deserves a good kick in the butt
    Are you going to sit on your fanny and do nothing?
   are you going to sit on your fanny and do nothing?