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1.
After a guy finishes it takes him 20 minutes to get it up again.
Jess: "Is the 20 minute rule up yet?"
Josh: "No."
by Raab70 December 07, 2008

Words related to 20 minute rule

20 minutes rule sex time twenty
 
2.
The rule which gives you legal right to leave your place of employment when 20 minutes has transpired since your boss has left the building.
"Dude, my boss just left!! 20 MINUTE RULE is in effect!"
by Kristine December 14, 2004