/plʌg/verb[T](present participleplugging, past tense and past participleplugged)
Definition
plug a gap/holemainly UK›to solve a problem by supplying something that is needed: The new computer system will help to plug the gap in the county's ability to collect taxes.
ADVERTISE›to talk about a new book, film, etc in public in order to advertise it: He was on TV, plugging his new book.