The literal act of becoming a #plantito or #plantita. But also, it's what you do with a grudge: "Itanim mo sa isip mo, hinding-hindi ko 'yun makakalimutan!" (Plant this in your mind, I will never forget that!). It’s planting a seed, whether it’s a literal mongo sprout for a school project or a seed of doubt in your friend's mind about her toxic jowa.