tail end

(noun) the time of the last part of something. Synonyms: fag end, tail. Examples: "The fag end of this crisis-ridden century." "The tail of the storm."

(noun) any projection that resembles the tail of an animal. Synonyms: tail.

(noun) the fleshy part of the human body that you sit on. Synonyms: 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. Examples: "He deserves a good kick in the butt." "Are you going to sit on your fanny and do nothing?."