And boy, you're gonna get them heebie jeebies?
Heebie-jeebies is used to describe a feeling of anxiety, apprehension, depression or illness. Tyler is referring to the feeling someone will have after realizing they kissed their girl after she sucked Tyler’s dick.
Also, heebie-jeebies could be a funny way of saying some STD. In the next line he says “his dick is way disease-y”, with which your girlfriend had a nice meeting with. So when you’ll “kiss” her you’ll get Tyler’s “heebie-jeebies”.
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