bass-ackwards /ˈbæs ækwəɹdz/adjective 1adverb 1forms 2 adjective1 •(informal, euphemistic) Spoonerism of ass-backwardsTheir whole approach is bass-ackwards. adverb1 •(informal, euphemistic) Spoonerism of ass-backwardsWhat do you expect? They did the job bass-ackwards. formsmore bass-ackwards · most bass-ackwards