noun

• (by extension) Any job, especially one that is freelance or temporary, or done on an on-demand basis.
  "I had this gig as a file clerk but it wasn’t my style so I left."
• (US, military) A demerit received for some infraction of a military deportment or dress code.
  "I received gigs for having buttons of my uniform undone."

verb

• (transitive)
• (transitive)
  "His sergeant gigged him for an unmade bunk."
• (intransitive)
  "The Rolling Stones were gigging around Richmond at the time."
• (intransitive)

noun

• (informal, computing) Clipping of gigabyte (“one billion (1,000,000,000) bytes”).
  "This picture is almost a gig; don’t you want to resize it?"
• (slang, chiefly sciences) Any unit of measurement having the SI prefix giga-.

noun

• (obsolete) A top which is made to spin by tying a piece of string around it and then throwing it so that the string unwinds rapidly; a whipping-top.
  "Peda[nt]. Thou diſputes like an Infant: goe vvhip thy Gigg. / Pag[e]. Lende me your Horne to make one, and I vvill vvhip about your Infamie vnũ cita a gigge of a Cuckolds horne."
• (chiefly British, school slang (Eton College), archaic or dialectal) A person with an odd appearance; also, a foolish person.
• Senses relating to enjoyment.
  "Such was his toil, when one night coming home, / Such swell uncivil, who'd been out to roam / In search of lark, or some delicious gig / The mind delights in, when 'tis in prime twig,—"
• Senses relating to enjoyment.
  "I muſt goe ſee him preſently, / For this is ſuch a gig: for certaine Gentlemen / The Fiend rides on a Fiddleſticke."