A phrase referencing the fact that future events are unknown and that the outcome of a desired situation cannot be ascertained at the time until said future events unfold.
Jim: I went on a date with Becky last night. I think it went pretty well. I wonder if she's the one?
Greg: Who knows man. Only time will tell.
Greg: Who knows man. Only time will tell.
by NumberOneBucsFan February 11, 2011