Top definition
The act of shoving a hand full of sand into a females vagina and having rough intercourse thus when finished said female is left to walk sideways with legs wide apart imitating the movement of a crab
Mate, I was down the beach on the weekend with my girl so i gave her the morton bay sand crab, its been 3 days and the bitch is still walking around like zoidberg.
by Terry Tough May 15, 2010
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