Pissing really loudly in a public restroom so the guy in the stall can rip a nasty crap without embarrassment.
Dude 1: Bro, thanks for laying down that cover fire, I had tacos for lunch.

Dude 2: No prob buddy! I just drank a big gulp, so that worked out great!
by Gaylando May 01, 2009
Providing the network with enough premium ads to mask any losses from lower CPM to keep the overall placement above a given margin.
Capital One is providing cover fire for National City on the Yahoo placement.
by JDubinthehizzy September 10, 2008

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