A Z-job refers to receiving oral sex while sleeping. Typically the phrase is used to describe a male receiving head, but can also be used in reference to females.
More About Z-Job
A Z-job can be an act performed by a partner as a way of waking the other for sex. A Z-job can also refer to head that is given while an unknowing or unsuspecting party is asleep, which might be considered to be sexual assault.
