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2.
Having sex with a woman while she is on her period, and ejaculating inside of her.
"Hey baby, want to have sex."
"No I'm on my period."
"That's okay we can make some fancy sauce."
by catchmayo May 07, 2009
 
1.
Combination of ketchup and mayo in the form of a dipping sauce
Son: What kind of dipping sauce is there?
Mom: Ketchup and mayo
Son: Fancy sauce, all you gotta say is fancy sauce and its over....
by Cris Cuban Pants December 04, 2008
 
3.
A sauce containing a mixture of ketchup & mayo that certain extremely gorgeous, sexy women like to abuse by using it on everything & sometimes adding hot sauce to it.
Hey Sean, do you have any hot sauce for me to add to my fancy sauce so I can ruin this pizza?
by Optimus Prime 88 April 05, 2011
 
4.
A glorious, fantastic and basically orgasmic combination of ranch dressing, barbecue sauce, and hot sauce all mixed together in approximately the same ratios. Variations of this fancy sauce include creamy (more ranch) and robust (more barbecue and hot sauces). May be added in any order, but must be stirred carefully for optimal mixing and uniform consistency and taste.
"Ketchup is so boring anymore, what else can I dip my fries in?" "Why don't you try fancy sauce?"
by steelpanwizard November 08, 2011