А40
ТЯЖЁЛАЯ АРТИЛЛЕРИЯ
NPfixed WO 1. iron or humor a slow, sluggish person, or slow, sluggish people
a slowpoke (slowpokes)
dead weight(one who is) hard to get moving.
2. the most effective, powerful means of achieving sth. (to which one resorts when other means are exhausted)
heavy artillery
big guns(in limited contexts) onefe trump card.