yessir UK /ˈjɛsɜː(ɹ)/US /ˌjɛsˈsɝ/exclamation 2noun 1 exclamation2 •(informal) Used to express assent, especially to a male superior. •(informal) Used to express emphatic affirmation. noun1 •(informal) Term of address to a male; mate; buddy.
