Top Definition
Sliverback Action- The act of having upper pectoral striations with complimentary shoulder like boulders. As quoted by Hodgetwins aka TwinMuscleWkout aka Fastingtwins aka Lord Keith and Lord Kevin aka Mr. Feathers Mr. Striations aka Bishop Gains and Father Fathers aka BBCs.
"Doing that decline bench presh for that Sliverback Action. Im making all kindz of gains."
by wolfward September 12, 2013

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