Here's how you would express similar concepts in French:
To refuse:
* Refuser: This is the most direct translation.
* Dire non: Literally "to say no."
* Décliner: More formal, meaning to decline an offer.
* Mettre fin à: To put an end to something.
To get rid of:
* Se débarrasser de: This is the most common way to say "get rid of."
* Jeter: To throw away.
* Éliminer: More formal, meaning to eliminate.
Examples:
* "Je refuse de le faire." (I refuse to do it.)
* "On va se débarrasser de ce vieux canapé." (We're going to get rid of this old couch.)
It's important to note that "86" is not a common term in French, so using one of the above phrases would be more appropriate.