Bomb  —n. 1 container filled with explosive, incendiary material, etc., designed to explode and cause damage. 2 (prec. By the) the atomic or hydrogen bomb. 3 slang large sum of money (cost a bomb). —v. 1 attack with bombs; drop bombs on. 2 (usu. Foll. By along, off) colloq. Go very quickly.  like a bomb colloq. 1 very successfully. 2 very fast. [greek bombos hum]