1. The fleshy part of the human body that you sit on
   "he deserves a good kick in the buttocks";
   - nates [informal, technical], butt [N. Amer, informal], backside [informal], bum [Brit, informal], buns [N. Amer, informal], can [N. Amer, informal], fundament [informal], hindquarters [informal], hind end [informal], posterior [informal], rear [informal], rear end [informal], rump [informal], stern [informal], seat [informal], tail [N. Amer, informal], tail end [informal], tooshie [informal], tush [N. Amer, informal], bottom [informal], behind [informal], derriere [informal], patootie [US, informal], botty [informal], duff [N. Amer, informal], bahookie [UK, dialect, informal], booty [N. Amer, informal], heinie [US, informal], tushy [N. Amer, informal], derrière [informal]

1. Either of the two large fleshy masses of muscular tissue that form the human rump
   "She toned her buttocks with squats and lunges";
   - cheek

Type of: body part

Part of: body, torso, trunk

Encyclopedia: Buttocks