subs. (university).An exhibitioner of Merton College: also PORTIONIST.
1853. REV. E. BRADLEY (Cuthbert Bede), The Adventures of Mr. Verdant Green, an Oxford Freshman, vii. I remember Mr. Larkyns telling us that the son of one of his old friends had been a POSTMASTER of Merton.
1886. Oxford Guide [A Dictionary of Slang, Jargon & Cant]. The POSTMASTERS anciently performed the duties of Choristers, and their payment for this duty was six shillings and fourpence per annum.