a person who cannot stay in a relationship. They get together with you for a week, then start ignoring you. Major mood swings, but still can be your best friend.
We did not write anything about our now friend cyrus on the green thing at his old elementary school.
by <3 Je suis Nigela <3 November 14, 2007
A red head with an unusually small penis
Woah, you're a cyrus
by Sony Erickson July 05, 2009
Use to describe a person who exemplifies extreme stupidity, see moron.
I swear to God, he was being such a Cyrus.
by Mofudos April 08, 2007
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