Teep

noun informal
A telepath.
Source
Solar Lottery

Splicer

noun
A person who has become murderously and irreversibly insane due to excessive genetic modification.
Source
Bioshock

Wirehead

noun informal
A person fitted with an electronic implant to stimulate the pleasure centres of the brain.
Source
The Ringworld Engineers

Chickenhead

noun informal
A mentally retarded person.
Source
Do Androids Dream of Electric Sheep?

Skinjob

noun informal
A Replicant.
Source
Blade Runner