A late night meal. Generally used to skip breakfast in the morning. Used particularly by college students, but it's never been known to discriminate. Usually between the hours of 1 A.M. to 3 A.M.
2 guys hanging out late at night:

"Hey dude you wanna get some Sobfast?" - person 1
"Ya dude im down. Lets order some McDonalds." - person 2
by Beerguy420 December 23, 2017
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so jaw dropping that you can’t even talk, if you tried to it would sound like “bluh beb blah bub
are you serious dude?” , “that is so sobfastering”
by Phatty joop May 14, 2021
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