Third-person singular simple present indicative form of halfcock

(firearms) The position when the cock of a gun is at the first notch.

(firearms) To set the cock of a firearm at the first notch.

simple past tense and past participle of halfcock

present participle of halfcock

(of a firearm) To be discharged prematurely, or with the trigger at half cock. / (slang) To do or say something without due thought or care.