Top Definition
When one bro prevents another bro from obtaining sexual goals. Primarly happens between college roomates.
Dude you better find some other room to sleep in. Dont be a brophylactic.
by Steve the Palm Tree September 04, 2009
1 more definition
When your best friend takes off his condom and turns it inside out for you to use.
My roommate knocked on my door and asked if I had an extra dong bag, I said regetably I was still wearing my last soldier. But as a good mate, I turned that shit inside out and saved the day with a Brophylactic!
by 73Fatty September 14, 2012

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