/ɪmˈpeɪl/

im·pale

BrE /ɪmˈpeɪl/

NAmE /ɪmˈpeɪl/

~ sth (on sth)

to push a sharp pointed object through sth

SYN spear

She impaled a lump of meat on her fork.

~ sb/yourself on sth

if you impale yourself on sth, or are impaled on it, you have a sharp pointed object pushed into you and you may be caught somewhere by it

He had fallen and been impaled on some iron railings.