To introduce (something) suddenly or violently.
To introduce (code) into an existing program or its memory space, often without tight integration and sometimes through a security vulnerability.
To take or be administered something by means of injection, especially medicine or drugs.
To administer an injection to (someone or something), especially of medicine or drugs.
To push or pump (something, especially fluids) into a cavity or passage.
To introduce or add (something that is different or foreign).
To hint; to suggest tacitly (usually something bad) while avoiding a direct statement.
To creep, wind, or flow into; to enter gently, slowly, or imperceptibly, as into crevices.
To ingratiate; to obtain access to or introduce something by subtle, cunning or artful means.