deadarse 

Same as "deadass" but for british niggas.

British nigga 1: What did you do with her last night?
British nigga 2: Oh mate, i deadarse got her to pull out her jubblies and had a nice shag.

deadarse by uzileopard April 13, 2018

deadassery 

has the same meaning as seriousness, or honesty, but more intense, i.e. dead ass

in all deadassery, that car is a piece of shit

deadassery by froydeanschlippe March 31, 2010