Top Definition
to replace the typical work day nooner where you and a co-worker make passionate love in the store room closet.
If you miss your nooner, there is always a dirty 4:30.
Dac took Alana into the back for a Dirty 4:30 while Jay watched.

I just had a dirty 4:30 in Alana's mouth.
by Dalana September 03, 2009
5 Words related to Dirty 4:30

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