name

• (British) The British version of the "Kilroy was here" graffiti.

noun

• (Internet slang, seduction community, incel slang) A very handsome, usually tall man whom women find sexually attractive; at times seen as an alpha male of a group.
  "They are united by the fact that women will not have sex with them, usually attributed to shallow obsessions with looks or superficial personality, and by their hatred of “Chads” and “Stacys”, the men and women who have sex."

noun

• (uncountable) Small pieces of paper punched out from the edges of continuous stationery, or from ballot papers, paper tape, punched cards, etc.
  "The keypunch wasn't named after a Mr. Chadless; it was so named because, as expected, it punched tape while producing little or no chad."
• (countable) One of these pieces of paper.
  "Prior devices of the type according to the present invention have been arranged to cut out the perforations completely at a single movement, thereby producing chads or waste material which often present difficult problems of disposal."

contraction

• (West Country, obsolete) I had
  "Chad et in my meend, and zo chave still. Bet chawnt drow et out bevore tha begen'st agen, and than chell."