A boulder brain is a Norfolk inbread male, who is over weight has poor hygiene, rarely washes towels sheets.... stresses over everything but not as much as his trouser button. Pants always down crack showing. Loverble, simple, germ ridden.
Lewis,you boulder brain, go have a wash!
by Neilwill September 26, 2019
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Coral with shape of brain and rock
When you visit Haiti and go to sea a lot of boulder brain coral you can see
by Lithus November 5, 2017
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