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.")
Cake that has been on the floor, but its ok, because its cake.
"Omg somebody left me some floor cake! #FLOORCAKE FTW!