Top definition
A bro who survives a run-in with a semtex grenade.

Flack Jacket Bro pays tribute to the use of Flak Jacket Pro to reduce explosive damage in the Modern Warfare video game series, the same series which made semtex grenade popular.
"Dude, after I jumped on that grenade for you the other night she ended up morphing into a full fledged semtex grenade. Been blowing up my phone all day. She finally quite after I answered and told her in a Spanish accent that she had the wrong number."

"Nice work, bro. Way to be rocking Flack Jacket Bro."
by nar1763 December 08, 2011
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