plugthegap

plugthegap(verb) (plug-the-gap)
To promote a space or void, to publicise or advertise something repeatedly. To work very hard and/or doggedly to complete a job or task.

plug (advertise) (verb)
To advertise something by talking about it a lot or praising it i.e. on the internet or radio.

gap (noun)
An empty space or opening in the middle of something or between two things. A place to park something or postition something in which to promote.