yeehaw Share definition Flag If you're southern, got a little redneck in you or you're happy you can say YEEHAW! Bill: Here's your lottery winnings, all 1 bachillion gazillion of it! Will: YEEHAW! yeehaw by Oz March 3, 2005 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