The Collaborative International Dictionary
Owl \Owl\, v. i. [imp. & p. p. Owled; p. pr. & vb. n. Owling.]
To pry about; to prowl. [Prov. Eng.]
To carry wool or sheep out of England. [Obs.]
Note: This was formerly illegal, and was done chiefly by night.
Hence, to carry on any contraband trade. [Eng.]