Related:

• bletch /blech/ interj. [very common; from Yiddish/German `brechen', to vomit, poss.
  via comic-strip exclamation `blech'] Term of disgust....
• barf: /barf/ [from mainstream slang meaning `vomit'] 1.
  interj. Term of disgust. This is the closest hackish equivalent of the Val\-speak "gag me with a spoon"....
• ACK: /ak/ interj. 1. [from the ASCII mnemonic for 0000110] Acknowledge.
  Used to register one's presence (compare mainstream *Yo!...
• barf /barf/ n.,v. [common; from mainstream slang meaning `vomit'] 1.
  interj. Term of disgust. This is the closest hackish equivalent of the Valspeak "gag me with a spoon"....
• barfulation: /bar`fyoo-lay'sh*n/ interj. Variation of {barf} used around the Stanford area.
  An exclamation, expressing disgust. On seeing some particularly bad code one might exclaim, "Barfulation!...
• foo /foo/ 1. interj. Term of disgust. 2. [very common] Used very generally as a sample name for absolutely anything, esp.
  programs and files (esp. scratch files). 3. First on the standard list of metasyntactic variables used in syntax examples....
• ACK /ak/ interj. 1. [common; from the ASCII mnemonic for 0000110] Acknowledge.
  Used to register one's presence (compare mainstream Yo!...
• FOO 1. [from the Yiddish 'feh' or Anglo-Saxon 'fooey'] interj.
  Term of disgust. 2. [from FUBAR, WWII acronym, often seen as FOOBAR] Name used for temporary programs, or as arbitrary names....
• bang: 1. n. Common spoken name for `!' (ASCII 0100001), 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}...