Top Definition
Man-boobs resulting from lack of exercise and overeating. It is important to note that the man flaunts his RSTs (Rockstar Tits) with no shame.
"Damn yo, that dude was shaking his rockstar tits in the club... I though he was a broad for a minute until I looked at his face."

"Did you see that rich dude rocking his RSTs at the beach. Somehow I'm jealous of that RST swag."
by The CK1 October 21, 2013

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