acky is an adjective to describe someone or something with ack-like qualities or an association with ack. (see ack, meaning poo). similar meaning to gross.
that guy who works at the hardware store is an acky grub.
An anglo- saxon derivative used to describe a filthy, dirty individual, place or object . Still in common use in thw North of England in particular Yorkshire.
Dunt go art wi her shi's a reight Acky git. Yorkskshire dialect/Queens i English Don't go out with her she is filthy.