Толковый словарь английского языка Oxford English Reference - bash

v. & n. --v. 1 tr. a strike bluntly or heavily. b (often foll. by up) colloq. attack violently. c (often foll. by down, in, etc.) damage or break by striking forcibly. 2 intr. (foll. by into) collide with. --n. 1 a heavy blow. 2 sl. an attempt (had a bash at painting). 3 sl. a party or social event. Etymology: imit., perh. f. bang, smash, dash, etc.