dag

noun12

1. •
   (slang, disapproving) One who dresses unfashionably or without apparent care about appearance; someone who is not cool; a dweeb or nerd.

   • SHE is one of Hollywood's most beautiful leading ladies and has access to any fashion designers, so then why is Catherine Zeta-Jones dressing like a bag lady? — 2009
2. •
   (Australia, slang) An odd or eccentric person; someone who is a bit strange but amusingly so.
3. •
   A hanging end or shred, in particular a long pointed strip of cloth at the edge of a piece of clothing, or one of a row of decorative strips of cloth that may ornament a tent, booth or fairground.
4. •
   A dangling lock of sheep’s wool matted with dung.

   • To see the dunged folds of dag-tayled sheepe. — 1597
5. •
   A directed acyclic graph; an ordered pair (V,E) such that E is a subset of some partial ordering relation on V.
6. •
   The unbranched antler of a young deer.
7. •
   A skewer.
8. •
   A spit, a sharpened rod used for roasting food over a fire.
9. •
   Ellipsis of dag sandwich.
10. •
    A misty shower; dew.
11. •
    (no longer used) A dagger; a poniard.

    • Even when my dag was levelled at his heart — 1515
12. •
    (no longer used) A kind of large pistol.

    • The Spaniards discharged their dags, and hurt some. — 1563

verb5

1. •
   To shear the hindquarters of a sheep in order to remove dags or prevent their formation.

   • Blade shearers could shear, crutch, mules or dag sheep anywhere they were needed. — 2007
2. •
   To cut or slash the edge of a garment into dags
3. •
   To skewer food, for roasting over a fire.
4. •
   (dialect, UK) To be misty; to drizzle.
5. •
   (dialect, no longer used) To sully; to make dirty; to bemire.

   • Vexing the baths with his dagg'd rout. — 1661

exclamation1

1. •
   (US, informal) Expressing shock, awe or surprise; used as a general intensifier.

   • Dag, yo. — 2002

noun4

1. •
   Acronym of directed acyclic graph.
2. •
   Initialism of diacylglycerol.
3. •
   Abbreviation of deputy attorney general.
4. •
   (US) Initialism of defense acquisition guide.

noun1

1. •
   Ellipsis of Dagwood sandwich.