IQ below room temperature

IQ Below room temperature, a phrase used to describe an individual who is so stupid that the temperature of a room is higher than their IQ Score.
This type of person should cause the standard human to be in pain just having to talk to an individual such as one described here.

*If someone that you believe to have an IQ below room temperature doesn't understand the phrase then they have confirmed your belief.
**Even more effective if you live in a country that uses the metric system!