What is "interlardings"

Usage examples of "interlardings".

But when I got him to read again the passage from Shakespeare with the interlardings, he perceived, himself, that books couldn't teach a student a bewildering multitude of pilot-phrases so thoroughly and perfectly that he could talk them off in book and play or conversation and make no mistake that a pilot would not immediately discover.

I cannot rid it of his explosive interlardings, they break in everywhere with their irrelevant, "What in hell are you up to NOW!