GM-uh Oh a cross between Chem Dawg and GSC. This cultivar is sometimes known as GMO and is a cross of the potent ChemDawg and the solid GSC cultivar. Its aroma is sometimes compared to the culinary holy trinity aka garlic, mushroom, and onion; hence the acronym. When opening a jar of GMO, the user is immediately hit with notes of strong sour skunk, others compare it to a mixture of burnt rubber and fast food. Common effects are considered to be relaxed, euphoric and sedating.