same as a batty man, gay boy, homosexual etc. a sperm-scranner means someone that eats sperm
person1: yo that fella looks like a right sperm-scranner innit
person2: yo fam he such a batty man look at them boat shoes
Someone who eats fecal matter for enjoyment
Lady: that boy is eating poo, how disgusting.
Man: that's just Tom Ratz, the ultimate shit scranner