yessir Share definition Flag hell yes, fuck yeah, you know it no doubt; thats a dumb question Q. Hey dude, are you gonna score tonight or what? A. Yessir! yessir by DooKiecaRot September 27, 2003 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug