I'm down Share definition Flag When you agree with someone. Mainly used to agree to do something. Do you want to eat ramen at 4 in the morning? "I'm down" I'm down by That's pretty spicy December 12, 2018 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