Rosin made from hash, or hash rosin, is considered by many to be one of the purest forms of cannabis concentrate. Cannabis rosin is made by combining high heat and immense pressure. Terpene and cannabinoid-rich oil (resin) is forced out of cannabis plant material called trichomes using a rosin press. Wedding Crasher, also known as "Wedding Crashers," is a hybrid marijuana strain made from a cross of Wedding Cake and Purple Punch.The strain mixes the smooth vanilla flavors of Wedding Cake with the sweet grape notes of Purple Punch, Symbiotic has developed a mellow, earthy strain with sharp gassy highlights and a sweet berry finish.