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1.
The distinct feeling of seeing food you have engulfed before.
Brian: Wait a minute, i've seen this meatball before!
Chris: Seems like a typical Deja food.
by BugsyTK January 02, 2007
 
2.
Leftovers.
When I woke up this morning I walked into the kitchen and experienced dejafood.
by Lucas Owen January 16, 2009
 
3.
The taste you get in your mouth of your last meal promptly after you burp. Usually occurs after consuming something along the lines of hot wings or spaghetti.
I had terrible Deja Food after I tore up a couple dozen wings and kept choking on the taste of them for hours after when i'd burp.
by PackW0man March 03, 2012
 
4.
the experience of feeling sure that one has already tasted or smelt food they taste or smell.
*sniff sniff* Oh what is that smell, I know it, it's on the tip of my tongue ahhh de ja food!!
by EJO86 June 26, 2011