Top definition
extremely crazy. very outgoing. very unusual. one of a kind. but kind at heart when it comes to animals. but also a very controlling and selfish person at times.
C'mon man, why are you being such a Brynnan today?

Start caring about something else besides yourself and animals and just get out of this "Brynnan" stage.
by shelberzleton July 04, 2011
Get the mug
Get a Brynnan mug for your guy Helena.