http://tvtropes.org/pmwiki/pmwiki.php/Main/PlotHole
Plot Holes are those gaps in a story where things happen without a logical reason. When a Plot Hole involves something essential to a story’s outcome, it can hurt the believability, for those who are bothered by such things. Hitting a Plot Hole at high speed can damage your Willing Suspension of Disbelief.
https://en.wikipedia.org/wiki/Plot_hole
In fiction, a plot hole, plothole or plot error is a gap or inconsistency in a storyline that goes against the flow of logic established by the story’s plot. Such inconsistencies include such things as illogical or impossible events, and statements or events that contradict earlier events in the storyline.
So that you actually know what a plot hole is.
Yup, exactly why those two scenes are plot holes in my book. Both took me right out of the movie.
Now let’s look at that claim on the escape from Hoth. How many ships left Hoth without a functioning hyperdrive? 1 - the Millennium Falcon. How many ships got chased from Hoth? 1 - the Millennium Falcon. Now, without a hyperdrive, the Millennium Falcon should have been easy to spot traveling from Jakku in real space. And what did Han say later? Something about the Falcon being easy to track. No, the entire sequence is just too convenient and strains credibility. All that would be needed is for Rey to engage the hyperdrive and have it carry them a short distance before it gives out leading to the necessary repairs that she then performed. And there is no way such a famous ship would not be in the First Order database and no way for it to escape detection (just like Han said). There is no internal consistency in the scene. It is a huge hole in the story.