Bummers meaning : A forager, especially in Sherman's March to the Sea of November to December 1864. An idle, worthless fellow, without any visible means of support; a dissipated sponger. A lamb (typically the smallest of a multiple birth) which has been abandoned by its mother or orphaned, and as a consequence is raised in part or in whole by humans. A disappointment, a pity, a shame. Homosexual male