slobber knocker
n.β Β«The recent football success for the University of Georgia has brought visibility to that unique class of player known by some as “the slobber knocker,” a guy who hits opposing players so hard that spit flies out of their mouths.Β» ββA penchant for playing rough” by Jay Stone Atlanta Journal-Constitution (Ga.) Oct. 6, 2005. (source: Double-Tongued Dictionary)