Rig up and Throw together

Rig up verb - Erect or construct, especially as a temporary measure.

Throw together and rig up are semantically related. In some cases you can use "Throw together" instead a verb "Rig up".

Throw together verb - Produce shoddily, without much attention to detail.

Rig up and throw together are semantically related. Sometimes you can use "Rig up" instead a verb "Throw together".