8:08 on a digital clock. Looks like Bob, stands for Bob the knob. The time at which a female HAS to give you a blow job.
Guess what time it is Lillie? Bob time!
The time (twice a day) that a clock reads 8:08.
Frank: Hey shorty, what time is it?
Melissa: It's BOB time.
Frank: Oooooh, I love it when you talk dirty to me! (pulls down pants from sitting position)
Melissa: pardon? What are you doing?
Frank: you just said it's bob time, right?
Melissa: yeah. It's Eight-Oh-Eight. So put it back in your pants!
Frank: I THOUGHT that sounded too good to be true.......