To hurry up.
Synonym: chop-chop

The phrase comes from the 1964 Disney movie, Mary Poppins.
Quotes from the movie:
----------------------
"Well, don't stand there staring. Best
foot forward. Spit spot!"
"Spit spot! And off we go."
"Come along, children. Spit spot!"
"Hurry up, please. Spit spot!"
by ktmack June 30, 2005
Get the spit-spot mug.
the spot on your sheets where you usaully drool, and when it dries it smells funny.
by Oswald219 December 26, 2008
Get the Spit spot mug.