a circular structure in a student center where many bro's gather in between classes, meals and other social obligations. When lacking a proper representation of bro's, the Brotunda is mistakenly referred to as a Rotunda. The Brotunda was founded at Quinnipiac University.
Wow, look at all the bro's in the brotunda lounge.

Rotunda my ass, this is a Brotunda.
by Anne D. Keysar October 26, 2010
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A grain silo that has been converted to a man cave
Jim was sick of hearing his wife bitch about her bunions so he went out to the brotunda to drink beer and watch porn.
by Rimbozaggy March 30, 2023
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