An extremely warm and sincere hug received from someone with whom you've have never had intimate relations. Involves a firm (but not tight) embrace for 2-4 seconds, a warm rub on the back, and, typically, something said softly into your ear. Most times leaves the recipient feeling like the hugger liked them more than they realized.
I approached Monica on her last day at work to simply say goodbye but she extended her arms and gave me one of the best puzzle hugs of my life.
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