Meaning of SNEAK IN

WordNet Dictionary
	Definition:		[v]  insert casually; "She slipped in a reference to her own work" [v]  enter surreptitiously; "He sneaked in under cover of darkness"; "In this essay, the author's personal feelings creep in"
	Synonyms:		creep in, insert, slip in, stick in
	See Also:		add, append, penetrate, perforate, spatchcock, supply