Top definition
A magical unicorn man guy who loves to eat penut butter with nutella. Nutella resembles turd nuggets. Brennains usually enjoy spending their time with their main bitches, also know as his lawn gnomes. He like dat shit. During christmas time, Brennain's have their own special traditions. Instead of saying the normal christmas greetings like: merry christmas!, they prefer to say : shove a candycane up your buttox. Many brennain's get beat up and/or get put in hospitals during the holiday season, for various reasons... they are speshul.
*unicorn getting beat up while holding a candycane*
saget bob: omg what is happening to that unicorn?!
bob saget: oh dont worry, he's just a brennain.
by sagetlover365daysayear December 24, 2012
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