spearing
n.— «A helmet-to-helmet hit on a quarterback, or on a receiver in the act of making a catch is illegal. Also illegal: hitting a player already on the ground with a helmet or “spearing,” as it’s commonly called.» —“The message is clear to NFL players: Keep your head up during games” Canadian Press Sept. 10, 2007. (source: Double-Tongued Dictionary)
Further reading
Understanding the varieties of conversational styles can mean the difference between feeling you’re understood and being insulted. “High-involvement” speakers interrupt or talk along with someone else to signal their enthusiasm...