Cake or a cupcake that has been on the floor for some time. Someone must really have the sweets bad to pick it up and start eating it - but they do !
"Jeremy, your place is a mess. Wait, is that floorcake ! First dibs !"
"Look, Delancey. They're serving floorcakes." (as spoken by Portia in, "Barbie Princess Charm School.")
Sexual activity with those on your residence floor in a college dorm. Often leads to an ex-boyfriend/girlfriend living on your floor that you may or may not run into when you want to least (ie. drunk at 3am sick on the way to the bathroom)
Those twolove floorcest, these walls are paper thin you know.