It is usually used as an exclamation.
Vootie originated in 1955 in a Mad Magazine parody where Dave Garroway's chimp (J.
Fred Muggs - who also painted a cover for Mad) takes over the show. Instead of Dave's signoff, "
Peace", the monkey said "Vootie". It was later used in 1996 as an exclamation in Star Control 3 by a
race called the Xchagger.