1. [n]  a conspicuous success; "that song was his first hit and marked the beginning of his career"; "that new Broadway show is a real smasher"
2. [n]  a fringe of banged hair (cut short squarely across the forehead)
3. [n]  a sudden very loud noise
4. [n]  a vigorous blow; "the sudden knock floored him"; "he took a bash right in his face"; "he got a bang on the head"
5. [n]  the swift release of a store of affective force; "they got a great bang out of it"; "what a rush!"; "he does it for kicks"
6. [adv]  (informal) directly; "he ran bang into the pole"; "ran slap into her"
7. [v]  leap. jerk, bang (dialectal); "Bullets spanged into the trees"
8. [v]  strike violently
9. [v]  close violently; "He slammed the door shut"
10. [v]  have sexual intercourse with; "This student sleeps with everyone in her dorm"; "Adam knew Eve" (know is archaic); "Were you ever intimate with this man?"
11. [v]  move noisily; "The window banged shut"; "The old man banged around the house"
12. [v]  to produce a sharp often metallic explosive or percussive sound; "One of them banged the sash of the window nearest my bed"

BANG is a 4 letter word that starts with B.

1. \Bang\, v. t. [imp. & p. p. {Banged}; p. pr. & vb. n.
   {Banging}.] [Icel. banga to hammer; akin to Dan. banke to
   beat, Sw. b[*a]ngas to be impetuous, G. bengel club, clapper
   of a bell.]
   1. To beat, as with a club or cudgel; to treat with violence;
      to handle roughly.
            The desperate tempest hath so banged the Turks.
                                                  --Shak.
   2. To beat or thump, or to cause ( something) to hit or
      strike against another object, in such a way as to make a
      loud noise; as, to bang a drum or a piano; to bang a door
      (against the doorpost or casing) in shutting it.
   

2. \Bang\, v. i.
   To make a loud noise, as if with a blow or succession of
   blows; as, the window blind banged and waked me; he was
   banging on the piano.
   

3. \Bang\, n.
   1. A blow as with a club; a heavy blow.
            Many a stiff thwack, many a bang.     --Hudibras.
   2. The sound produced by a sudden concussion.
   

4. \Bang\, v. t.
   To cut squarely across, as the tail of a hors, or the
   forelock of human beings; to cut (the hair).
         His hair banged even with his eyebrows.  --The Century
                                                  Mag.
   

5. \Bang\, n.
   The short, front hair combed down over the forehead, esp.
   when cut squarely across; a false front of hair similarly
   worn.
         His hair cut in front like a young lady's bang. --W. D.
                                                  Howells.
   

6. \Bang\, Bangue \Bangue\, n.
   See {Bhang}.
   

1. A common spoken name for "!" (ASCII 33), especially when used in pronouncing a bang path in spoken hackish. In elder days this was considered a cmuish usage, with mit and stanford hackers preferring excl or shriek; but the spread of unix has carried "bang" with it (especially via the term bang path) and it is now certainly the most common spoken name for "!". Note that it is used exclusively for non-emphatic written "!"; one would not say "Congratulations bang" (except possibly for humorous purposes), but if one wanted to specify the exact characters "foo!" one would speak "Eff oh oh bang".

See pling, shriek, ascii.

2. An exclamation signifying roughly "I have achieved enlightenment!", or "The dynamite has cleared out my brain!" Often used to acknowledge that one has perpetrated a thinko immediately after one has been called on it.

[jargon file]