The Collaborative International Dictionary of English v.0.48:

Ogle \O"gle\ ([=o]g'l), v. t. [imp. & p. p. Ogled ([=o]g'ld);
   p. pr. & vb. n. Ogling ([=o]"gl[i^]ng).] [From a Dutch word
   corresponding to G. [aum]ugeln to ogle, fr. auge eye; cf. D.
   ooglonken to ogle, OD. oogen to cast sheep's eyes upon, ooge
   eye. See Eye.]
   1. To view or look at with side glances, as in fondness, or
      with a design to attract notice.
      [1913 Webster]

            And ogling all their audience, ere they speak.
                                                  --Dryden.
      [1913 Webster]

   2. To stare at conspicuously or impertinently.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Ogle \O"gle\, n.
   An amorous side glance or look. --Byron.
   [1913 Webster]

WordNet (r) 3.0 (2006):

ogle
    v 1: look at with amorous intentions