skull crusher
 n.— «Mike uses dumbbells instead of an EZ-bar, lowering them straight back (simultaneously) under complete control before exploding back up to, full extension and sueezing the triceps hard. “The key is to make sure that the triceps are doing all the work,” he says. “I go really heavy; the movement is explosive but totally isolated on my triceps. You have to be really careful here—they’re called skull crushers for a reason.”» —“Armed intensity” by Craig Hartglass Muscle & Fitness Feb. 1, 1997. (source: Double-Tongued Dictionary)

Tagged with →