Hang by a thread and Slip up

Hang by a thread verb - Depend on a small thing or be at risk.

Slip up and hang by a thread are semantically related. In some cases you can use "Slip up" instead a verb phrase "Hang by a thread".

Slip up verb - To make a mistake.

Hang by a thread and slip up are semantically related. Sometimes you can use "Hang by a thread" instead a verb "Slip up".