To beat, as with a club or cudgel; thump; cudgel.To beat or handle roughly in any way; treat with violence; knock about; drub; defeat: often with about: as, to bang the furniture about.To produce a loud noise from or by, as in slamming a door, and the like: as, he went out and banged the door behind him.To beat in any quality or action; surpass; excel.To strike violently or noisily; thump: usually with against.To resound with clashing noises.To spring or move with sudden energy or impetus; bounce: as, he banged up at once.n. A heavy, resounding blow; a thump, as with a club.n. A loud, sudden, explosive noise, as the discharge of a gun or cannon, the slamming of a door, etc.n. A sudden, impetuous movement; an energetic dash or bounce: as, he got up with a bang.n. A stick; a club.n. Synonyms See thump.With a sudden or violent blow or clap; all of a sudden; abruptly: especially with come or go: as, bang went the guns.To cut across: used of hair. To cut (the hair) so as to form a fringe over the forehead: a common fashion with girls and young women.To dock (a horse's tail).n. The front hair cut so as to hang evenly over the forehead: often in the plural: as, to wear bangs.n. See bhang.n. The Cuban sardine, Sardinella pseudohispanica.