A horseradish sauce Arby's offers as a regular condiment, alongside ketchup, mustard, and mayonnaise.

Also known to cause people to shit their pants.
"I put a lot of Arby's Horsey Sauce in those cupcakes." - Eric Cartman from South Park
by Formault October 29, 2011
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Yo that “Horsey Sauce” Was fire shard. Backwards and forwards and upside down.
by Midnight-mayor May 24, 2020
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When one has glazed themselves with their own ejaculate in the same consistency as Arby's famous horseradish sauce.
Bro you have some glue on your leg.

No you dumb bastard, I horsey sauced my pants after Wendy gave me some quick top in the back of her step dad's '93 Mazda LaPuta.
by DeezusSheist March 6, 2020
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