('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']
(..) I could help, please. - Please captain ... - God! Alright. Come on. , , . Slide, slide. Slide. - How is he? - He'll be fine, but there is swelling ... ...needs to rest. I'll be back to check up on him. He ran off, didn't he? (..)2015 The Revenant