keister
1. [ noun ] Last name, frequency rank in the U.S. is 4965
2. [ noun ] the fleshy part of the human body that you sit on
Synonyms: seat ass bottom rear_end tail behind buttocks stern hindquarters fundament hind_end posterior bum backside prat rear buns tail_end tooshie tush rump can derriere fanny butt nates arse
Examples:

"he deserves a good kick in the butt" "are you going to sit on your fanny and do nothing?"

Related terms: body_part torso
Similar spelling:   Kester
  Kesterson
  kestrel