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Prescription ADHD medication, specifically Dexmethylphenidate (Focalin), used for recreational use. The yellowish tint of the pill is compared to the embryonic yolk sac found inside an egg. Snorting the Folk Yolk is the ideal method of consumption, resulting in a custard-like mucus that drips from one's nostrils.

Side effects include: accelerated heart rate, hair loss, teeth/jaw grinding, increased sense of importance, inability to regulate voice volume, extended flaccid masturbation sessions, intimate conversations that could last several hours, inability to black out, ability to drink 40+ alcoholic beverages in the span of 8 hours, sadness, inability to utilize general discretion when scrolling through cellular contacts, involuntarily witnessing the sun rise.
"Hey, Chad is pretty intense tonight, do you think he ripped the Folk Yolk in his room?"

"All those boys do is play gamecube and rip Folk Yolk, why would we ever sleep with them?"
"But Becky, you slept with Chad last night..."
"Well that's different...I ripped the Folk Yolk last night."

(knock on door) "Hey it's Stan, can we come in?"
(Silence)
"They must be ripping the Folk Yolk."
by slimchaydy November 16, 2015
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