Rig up and Throw up

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

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

Throw up verb - To discharge the contents of the stomach through the mouth.

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