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© 1999–2026 Urban Dictionary ®
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Pronounced 'Fahhz' Stands for "Freak Out Syndrome" (fos, fosing, fossed, foser) 1) noun: The instance in which someone has a crush on someone else but denies it, convincing themself that they don't actually like them. 2) verb (to fos, fos out): Any act of running away from a potential relationship or fling with another, for no apparent reason. 3) verb (to fos): When someone makes a move on you and you completely freeze up and aren't sure why. Side effects may include the feeling of flushed skin, increased heart-rate and utter nervousness. 4) noun: Something that ruins love lives. Alternative spelling: 'foz'
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