Definition

Multiple unfavorable assignments, duties, or circumstances hitting simultaneously. When the duty roster, inspection schedule, and training calendar all conspire against your weekend plans.

Example Usage

I'm stacked this weekโ€”staff duty Saturday, range detail Sunday, and a layout Monday.

Origin

General usage meaning accumulated or piled up, adopted into military context

Fun Fact

Being stacked is often seen as either extremely bad luck or evidence that someone in leadership doesn't like you, sometimes both.

Source: Common military scheduling slang

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