Cue, n. [From q, an abbreviation for quadrans a farthing.] A small portion of bread or beer; the quantity bought with a farthing or half farthing.
☞ The term was formerly current in the English universities, the letter q being the mark in the buttery books to denote such a portion. Nares.
Hast thou worn
Gowns in the university, tossed logic,
Sucked philosophy, eat cues?
Old Play.