A nickname for a fat person; someone who is hefty as a cinch-sack.
Mary: "Who's the lard-ass in the corner?"
Fred: "That's Cinchie! She's hefty as a cinch-sack."
by Chili2 July 26, 2017
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Delightfully easy.
Wayne cringed in fear when after telling the tailor, Mr Roberto, that he was unsure of his inseam measurement, Mr Roberto, grinning mischieviously said, "Cinchy, I'll just kneel down and measure it myself...shouldn't take but a few minutes."
by harry flashman July 24, 2003
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