Fictional pharmaceutical that makes gays straight, or fem gays butch.
"Did you see that pink mohair coat Steve was wearing? Someone forgot to take his Hetracil today!"
or
"He's usually so fem; looks like he's been taking his Hetracil."
Usually describing a pair or duo, although sometimes can be used for multiple persons, that are banding together to accomplish an illegal act, most likely a pedophilic action or kidnapping of some sort.