backhead

Etymology

From back +‎ head.

Noun

backhead (plural backheads)

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backhead

Wikipedia

The wall of a steam locomotive's firebox, located in the cab, where the controls are mounted.

Verb

backhead (third-person singular simple present backheads, present participle backheading, simple past and past participle backheaded)

(soccer) To hit the ball with the back of the head