1.) a ferocious reptile (finlandanus gizzordian) Located in the inner most regions of china. The name comes from the deadly neuro toxin (finloxie-polychloride)injected into its victims. This poisin instantly breaks its targets down into deathmounds.
2.) Original slang started by gang members and adopted by the hiphop scene. East to West people use this term to decribe a straight killer. Derived from the ultra deadly reptile Finlandanus Gizzordian.
"Im bout to get Finlandish Gizzard on your ass"
"Dont fuck with Leeroy, hes straight Finlandish Gizzard"