Top Definition
The comparative term to the male "cock block." It means to effectively stop a female companion from getting laid.
I was gonna bring this hot guy back to my apartment, but my bitch roommate decided to pull a clam jack.
作者 Lon 2005年10月11日
When a woman interferes with one's attempt to hook up with someone. Similar to "cockblock".
"He was totally into me, but then that bitch showed up and clamjacked me."
作者 Whereswill 2007年1月23日



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