WordNet Dictionary- [v] move sideways
- [v] move unobtrusively or furtively; "The young man began to sidle near the pretty girl sitting on the log"
Webster's 1913 Dictionary\Si"dle\, v. t. [imp. & p. p. {Sidled}; p. pr. & vb. n.
{Sidling}.] [From {Side}.]
To go or move with one side foremost; to move sidewise; as,
to sidle through a crowd or narrow opening. --Swift.
He . . . then sidled close to the astonished girl.
--Sir W.
Scott.