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1.
Food that can barely be considered food. or a very informal meal, with mostly junk food.
substinance ie. junk food replacing real food for a meal.
by davismaxwell January 24, 2009
 
2.
The wondrous sustenance that can only be obtained through the consumption of hilarious amounts of subway sandwiches.
After another night on the piss without eating all day, i was in dire need of some substinance
by Naryzhud January 25, 2007