buttock

noun

but·​tock ˈbə-tək 

 also  -(ˌ)täk

1

: the back of a hip that forms one of the fleshy parts on which a person sits

2

buttocks plural

a

: the seat of the body

b

: rump sense 1a

Synonyms

• backside
• behind
• booty [slang]
• bootie
• bottom
• breech
• bum
• buns
• butt
• caboose
• can
• cheeks
• derriere
• derrière
• duff
• fanny
• fundament
• hams
• haunches
• heinie [slang]
• hunkers
• keister [slang]
• keester
• nates
• posterior
• rear
• rear end
• rump
• seat
• tail
• tail end
• tush [slang]

Examples of buttock in a Sentence

she slipped in the mud puddle and hit the ground square on her buttocks

Recent Examples on the Web

Alston noted that Zeman was the subject of an investigation after slapping the buttocks of an employee during a break in a School Board meeting in December 2022. —Scott Travis, Sun Sentinel, 13 July 2024

The mother told investigators that Prakash examined the rash on the child’s back and allegedly used an open hand to slap the child’s buttocks, the warrant affidavit said. —Justin Muszynski, Hartford Courant, 9 July 2024

But spending his life either sitting in a chair or lying in bed led to sores developing on his buttocks. —Ellen Moynihan, New York Daily News, 23 June 2024

But, during the part where the fat gets transferred to the buttocks, the complaint says Torres injected the fat into the gluteus muscles of the buttocks. —David J. Neal, Miami Herald, 16 June 2024

Word History

Etymology

Middle English buttok — more at butt entry 1

First Known Use

13th century, in the meaning defined at sense 1

Kids Definition

buttock

noun

but·​tock ˈbət-ək 

1

: the back of the hip which forms one of the fleshy parts on which a person sits

2

plural

a

: the seat of the body

b

: rump sense 1a

Medical Definition

buttock

noun

but·​tock ˈbət-ək 

1

: the back of a hip that forms one of the fleshy parts on which a person sits

2

buttocks plural : the seat of the body

also : the corresponding part of a quadruped : rump