Top Definition
Murray's Law states that everybody is happier when they are receiving sex on a somewhat regular basis. Food tastes better, work is easier, etc. when people are getting sex on at least a somewhat regular basis. Murray's Law can apply to people in relationships or people not in relationships.
Joe: Why has John been so happy lately?

Dave: He's been getting some every night this week. Murray's Law, dude.
by jimmyjohn18 April 05, 2011

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug