Citations:clamp it

sense: send someone to the electric chair (?)

• 1955, Rex Stout, "The Next Witness", in Three Witnesses, October 1994 Bantam edition, →ISBN, page 1:

  That morning, watching him at the chore of trying to persuade a jury to clamp it on Leonard Ashe for the murder of Marie Wallis, I thought he was pretty good and might be better when he had warmed up.