Used other than figuratively or idiomatically: see drag, in.
To get into a course of action by forceful means.
To introduce (something) between other things; especially to insert (possibly spurious) words into a text.
During the course of processing some data, and in response to a directive in that data, to fetch data from a different source and process it in-line along with the original data.
To estimate the value of a function between two tabulated points.