What are called Death overs or Slog overs in a Cricket match inning?

I have watched cricket for more than 30 years and never heard this term used.

Mythagoman, it may also be noted that it is Lasith Malinga and not Latish Malinga.

Innings not inning.

Let’s have more American football and baseball questions because not the whole world knows anything about cricket. Even the playing field.

Player SC, its between 16 to 20 over or 46 to 50

the man in photo is lasith malinga