Derived from tech culture (when a smartphone or console updates badly and turns into a useless "brick"), it means something is unfixable and cannot be restarted, often to describe old systems or infrastructure that can never be turned back on.
“The underground pneumatic mailtubes are completely bricked under the city streets.”
to sport a boner, fly the sail at full mass, rock hard, etc.
"I had a lot of cartoon characters that used to get me sexually aroused as a kid... The female reindeer from the Rudolph claymation series, when I was in preschool, I used to be bricked up watching that shit." -Jack Harlow