bore stiff

bore (one) stiff

To cause one to be extremely bored, to the point of distraction, frustration, or irritation. Today's lecture bored me stiff.
See also: bore, stiff

bore someone stiff

 and bore someone to death; bore someone to tears
Fig. to be exceedingly dull and uninteresting. (Stiff means "dead.") The play bored me stiff. The lecture bored everyone to death.
See also: bore, stiff