If a 'vote' is a noun, what is the verb for what you do to it?

Don’t rock the vote, baby.

I mad-libbed my vote.

Meaning I filled “Stephen Colbert” into every blank on the form. Even the blank for my name.

Bolding mine. Didn’t you just answer your own question?

According to the OED (via About.com):
Which Word Has The Most Definitions?