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A person whose face is paralyzed on one side. This is most noticeable when the forsythed person smiles, and only one side of their mouth goes up.

Often caused by a stroke or untreated ear infections.

Also related:
forsythed, forsyther
Is that person wasted or are they just a forsythe?
by SpokaneHo January 13, 2012
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2
1. similar to the shocker, although, while sucking a guy off, inserting your fist into his anus, and wiggling your fingers around for hightened pleasure.
"Last night Coreys mom gave me an awesome forsythe, she got a huge load on her face"
by Big Jerms July 27, 2005
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3
The act of fornication or any attempted sex act.
Did you forsythe last night with crystal?
That forsythe was the best forsythe of my life!
by doobie23456 January 10, 2010
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