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1.can be used as a time of day four and twenty can be replaced with different numbers to fit the appropriate time the dot is used as a dot on a digital clock.

2.slang for the time of day when the most brains cells are lost due to the smoking of a illegal substance known as pot,marry jay,and weed.
1.person one-hey what time is it fool?
person two-its four dot twenty and im bout to split!
person one-cool im bout to head to da crib too!
2.person one-ay what you doing today chad?
person two-not much blake but at four dot twenty im gonna go smoke some ganja!!!
by TheBirdman09 February 05, 2006
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