What does thumb of rule mean?

Question

What does thumb of rule mean?

Answer 1

Someone told me that it originates from a time when a man was allowed to hit is wife with anything that was smaller then the diameter of his thumb....but I believe that is a hoax.

It is a point of reference or standard which is not necessarily accurate but close enough to be reliable and it's considered acceptable.

"The rule of thumb is that you only use blue of black ink to fill out legal documents."

Answer 2

rule of thumb is an estimation of the choice according to a practical rule not on exact measurement.

Answer 3

it is an expression which means that in approaching certain thing that you want to do there are basic thing to follow..such as you should make sure that you wash your hands before handling food..that is an unwritten health rule of the thumb.Check that you have petrol in the tank before proceeding to drive your car..that is an unwritten rule about car driving.or do not drink if you drive...

Answer 4

do you mean rule of thumb?

in that case it means like the main rule

or something important to follow

Answer 5

A guideline to something.

http://www.phrases.org.uk/meanings/rule-...