conchfuck Share definition Flag To forcefully insert your penis inside a conch or any other type of seashell. "I went to the beach and conchfucked the shit out of some hermit crabs." conchfuck by fhbyuslfcbhs;idv November 28, 2019 0 0 Get merch Get the conchfuck mug. Buy Now — $32.95 See more merch