What does a Vulcan lawnmower need to function?

A spock plug.

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Function Jokes More Function Jokes

What do you call a mathematician who drinks too much?

A functioning alcoholic.

Why did Sally the Sloth sleep in all day?

Because her crippling depression leaves her unable to function properly.

Vulcan Jokes More Vulcan Jokes

What do you call a Vulcan philosopher who only responds in questions?

Spocrates.

What do Romulans and Vulcans do with their high school drop outs?

Send them to barber school.