When a boy has a girlfriend and she cheats on him..with his brother "Broshare" can also be feminine as "Sisshare", when a sister has a boyfriend and he cheats on her with her sister.

It is also meant to sound like "Brochure", cause a brochure viewed by more then one person (normally.
I hear Dan is being "Broshared" by Rachele, that girl gets around
by Celina Jade February 7, 2009
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