subs. (thieves).A prostitute or procuress.GROSE [1785].
Verb (schoolboys).(also FEND, FAIN, FAINITS, etc.). A term of warning, or of prohibition: as to prevent any change in the existing conditions of a game; e.g., at marbles, FEN-PLACINGS = no alteration in position of marbles is permissible; FEN-CLEARANCES = removal of obstacles is forbidden. [FEND = M.E. defend in sense of to forbid.] FAIN, FAIN I, (with which cf., BAGS I) are corruptions. At Winchester, FINGY YOU or FINGY THAT are analagous; but at Christs Hospital FIN = I wont have, the reverse of BAGS I.
ante. 1815. E. C. HARRINGTON, in Notes and Queries, 5 S., vii., 98. Respecting the word FEN I can testify to the use of the term by schoolboys prior to the battle of Waterloo meaning that we protested against an exceptional action.
1852. DICKENS, Bleak House. Im fly, says Jo. But FEN larks, you know.
1877. Notes and Queries, 5 S., vii., 178. A comical application, was, I remember well, FEN live lumber! which, if pronounced in time, would disable your opponent from moving a bystander out of the way of his shot.