What is Texas Shake?
1.
The texas shake is when two or more men put on snake-skin cowboy boots and engage in sexual intercourse. Prior to achieving orgasm the taker is to take off the boot so his partner can ejaculate into it. He then will drink from the boot afterwards. This act is dubbed "Texas Shake" becuase more often than not you must shake the boot, as the cum has a tendancy to get caught in the toe of the boot.
Joe was only wearing one boot because he had used his other while performing a texas shake with his partner earlier that night.
See