Definitions
1.verbTo hint; to suggest tacitly (usually something bad) while avoiding a direct statement."She insinuated that her friends had betrayed her."
2.verbTo creep, wind, or flow into; to enter gently, slowly, or imperceptibly, as into crevices.
3.verb(by extension) To ingratiate; to obtain access to or introduce something by subtle, cunning or artful means.