buhmp shihs
adjective
obnoxiously assertive; pushy.
“The Liberians have been trained in freedom. They are called bumptious and given a bad name by their English and French neighbors but this is merely because they have successfully resisted the encroachment of whites and have tried to rule their own land.” (W.E.B. Dubois in Letters from Black America, ed. Pamela Newkirk, 2009)