Third-person singular simple present indicative form of have blood on one's hands

simple past tense and past participle of have blood on one's hands

present participle of have blood on one's hands

(idiomatic) A statement that one will not allow something (most often a firearm or other weapon) to be taken away from one's possession until after one's death. A variant, from my cold dead fingers, is most often used in the US by gun rights advocates.

A large number of people co-operating can perform tasks easily.

(idiomatic) To deal with a problem alone instead of waiting on others (often persons who are responsible and have failed to deal with the issue).

Alternative form of idle hands are the devil's workshop

(intransitive, idiomatic) To punish someone according to one's own idea of justice, without consideration for the role of law enforcement authorities.

Alternative form of take the law into one's own hands

(idiomatic) To summon up one's courage in readiness for a difficult or dangerous action.