subs. (venery).1. The act of kind; (2) = a PERFORMER (q.v.): e.g., Hes but a bad SHAG = Hes no able womans man (GROSE). As verb. = (1) to copulate: see GREENS and RIDE; and (2) TO FRIG (q.v.).
TO SHAG BACK, verb. phr. (hunting).To hesitate; to hang back; to refuse a fence.
AS WET AS A SHAG, phr. (provincial).As wet as may be. [SHAG = cormorant.]