Ad-lib and Throw together

Ad-lib verb - To perform, make, or do without preparation.

Throw together and ad-lib are semantically related In some cases you can use "Throw together" instead a verb phrase "Ad-lib".

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

Ad-lib and throw together are semantically related in conceive topic. Sometimes you can use "Ad-lib" instead a verb "Throw together", if it concerns topics such as make up, improvise.