What does "interlard" mean?

Interlard: Hence: To insert between; to mix or mingle; especially, to introduce that which is foreign or irrelevant; as, to interlard a conservation with oaths or allusions. The English laws . . . [were] mingled and interlarded with many particular laws of their own. Sir M. Hale. They interlard their native drinks with choice Of strongest brandy. J. Philips.