To "Take One In The Vest" is a saying that security officers on the Seattle waterfront used for breaking up with a bitch instead of marrying her, who later went on to fuck somebody else over.

Cause if you take the bullet in the vest it hurts like a motherfucker but you get over it.
"So I heard you broke up with Megan"

"Yeah I took one in the vest"
by Officer Friendly September 14, 2007
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