Top Definition
Complete the rainbow is the action of having sexual intercourse with one or more individuals from each of the fraternities on campus. Leaving this way, an entire variety of fraternity colors, like a rainbow.
Claire decided to Complete the Rainbow, thus, slept with guys from each of the fraternities on her school.
by Serena V May 05, 2008
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.