on
1.
to make sth increase rapidly :
The team piled on the points in the first half of the game.
I've been piling on the pounds (= I have put on weight) recently.
2.
to express a feeling in a much stronger way than is necessary :
Don't pile on the drama!
Things aren't really that bad—she does tend to pile it on .
3.
to give sb more or too much of sth :
The German team piled on the pressure in the last 15 minutes.