tail end

tail end (http://definr.com/tail end)

     n 1: the time of the last part of something; "the fag end of this
          crisis-ridden century"; "the tail of the storm" [syn: {fag
          end}, tail]
     2: any projection that resembles the tail of an animal [syn: tail]
     3: the fleshy part of the human body that you sit on [syn: buttocks,
         nates, arse, butt, backside, bum, buns, can,
         fundament, hindquarters, hind end, keister, posterior,
         prat, rear, rear end, rump, stern, seat, tail,
         tooshie, tush, bottom, behind, derriere, fanny,
         ass]