He didn't know he had it in him.
They don't know it either - that's why they are so sour
Not funny. Except in that you know, "heh, meta" kinda way. Heh, meta.
Ready steady glow !
Because every time they go to the starting gate they're reminded "They're Off!".
A cantelope.
The blonde replies, "I completed the puzzle in 65 days! The box said 2 to 4 years!"
A graduated cylinder.
A hole in Juan!