Webwhy does my mouth taste like weed? Have you ever experienced the bizarre sensation of your mouth tasting like weed without any apparent reason? It’s a puzzling phenomenon. Webone possible reason for your mouth tasting like weed could be the phenomenon known as “phantom taste. ” our taste buds rely on complex interactions between our senses of. Web**why does my mouth taste like weed randomly?** if you ever experience the strange and unexpected taste of weed in your mouth, you might wonder what could be causing it. Webthe most likely reason for tasting weed in your mouth randomly is the presence of residual compounds from previous marijuana use. These compounds can persist in your saliva,.