submarining
n.— «Maryland has performed well in short-yardage goal-line situations in part because its defensive linemen employ a legal technique known as “submarining,” where they lunge forward from a four-point stance and cut down opposing offensive linemen at the knees, ideally preventing an offense from getting a push off the line.» —“Harper turns offensive tables around for Tigers” by Paul Strelow in Clemson The State (Columbia, South Carolina) Oct. 26, 2007. (source: Double-Tongued Dictionary)
Further reading
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