Submitted by brad777 on February 25, 2011 English 0 Comments lackoass adj., A person who has a limited posterior. One who cannot fill out a pair of jeans. That there is a sad case of lackoass. 00 Be the 1st to vote for this wordoid.Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window) Related Add a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment:*Name:* Email Address:* Website: Save my name, email, and website in this browser for the next time I comment. Please enter an answer in digits:9 − 6 = Notify me of follow-up comments by email. Notify me of new posts by email.