A sneaking fellow.
I despise a slink--Chron. of Pineville, p. 139.
·adj Thin; lean. II. Slink ·noun A thievish fellow; a sneak. III. Slink ·adj Produced prematurely;...
Webster's Dictionary of the English Language
a calf produced before its time. Var. Dial. ...
A glossary of provincial and local words used in England by Francis Grose