('chiefly Brit') Her career has been 'on the slide' [='on the decline'] for a couple of years.
You were late this morning. I'll 'let it slide' this time, but don't let it happen again.
His parents are concerned that their son's grades have started to 'slide'. [='worsen']
(..) down with porridge plague. - Porridge plague? - You don't have it in the North? Your skin starts to look like boiled oats and eventually your face slides off and you die in agony. But that's awful. You're-- I believed you! Porridge plague. (..)2013 TvShow: Game of Thrones Title: And Now His Watch Is Ended Season: 3 Episode 4
(..) to keep our sons from the grave. But they do seem to yearn for it. We shower them with good sense, and it slides right off like rain off a wing. And yet the world belongs to them. A ridiculous arrangement, to my mind. (..)2013 TvShow: Game of Thrones Title: And Now His Watch Is Ended Season: 3 Episode 4