This is a military term for aligning yourself in formation with the person in front of you, so that when viewed from the front of a formation you all are covered and aligned correctly.

In the vernacular, to cover down means to get someone's back when they fuck up.

Example: "Where is Jones, why isn't he here?"

"He's at dental sergeant."

That's covering down.
When your wife drinks too much, you cover down on that shit, hold her hair out of the toilet, and tell nobody about it.
by CPT Ron May 25, 2020
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a fascination with the buttocks of the person in front of you.
cover down on that person!
by chichi montoya March 10, 2010
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