To call an end to a meeting, session or shift, usually done by some form of authority, releasing those underneath him or her from duty until the next appointed time.
My boss called "Thunderbird" at 2:30, so I was able to come home early.
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