look up any word, like ratchet:
 
1.
Used as a generic response. If there is nothing more to be said, then close with a "Probably."
A: People like complaining.
B: Probably.
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A: What time does the football game start?
B: Probably.
by 5Q September 20, 2011
 
2.
more than likely/ for sure or almost sure
Dillon: They will probably call off school today.
Tom: Yeah, i sure hope so.
by cookies r us March 04, 2008
 
3.
An expression used by someone whose life lacks any joy or happiness to convey sarcasm and pull others into his black hole.
Zac: Damn I'm good at basketball.
Vincent: Probably.
by Rob March 31, 2003
 
4.
An adverb used in any statement which is almost certainly false.
A: Where the hell is Tom?
B: He probably ran down the train track and died of amnesia.
by J Dogg October 15, 2003