Sign-off and Throw in the towel

Throw in the towel and sign-off are semantically related. In some cases you can use "Throw in the towel" instead a verb phrase "Sign-off".

Throw in the towel verb - Give up in the face of defeat of lacking hope; admit defeat.

Sign-off and throw in the towel are semantically related. Sometimes you can replace phrase "Sign-off" with "Throw in the towel", this phrases are similar.