Top Definition
Having very delightful sexual intercourse with your brother. it is not consider rape.
"Hey Johny, lets go Brunckle..." " Oh yes PLEASE!"
by Ryan likes boys November 29, 2011
1 more definition
Nicer word for bitch.
You: You're such a freaking brunckle but I love you. (:
Friend: Back at you!
by Ahhlayna February 11, 2012

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