Back off and Cop-out

Back off verb - To break a promise or agreement.

Cop-out and back off are semantically related. In some cases you can replace phrase "Cop-out" with "Back off", this terms are similar.

Cop-out noun - The act or a means of getting or keeping away from something undesirable.

Back off and cop-out are semantically related. Sometimes you can use "Back off" instead a verb phrase "Cop-out".