A resin hit refers to smoking leftover resin that accumulates in a bowl or smoking device. This resin can be scraped off and discarded, or it can be put back in a bowl to take a resin hit. Most smokers resort to a resin hit when they have run out of regular flower material to pack in their bowl. Smoking leftover, accumulated resin is less desirable than smoking good bud or concentrate because it’s a harsh hit and will often burn the throat, although can still produce a high if it’s all you’ve got.