A form of oral sex involving the positioning of the penis at a minimum 30 degree angle in the mouth, causing it to rub against the check of the blowjob administrator. The only reliable way to determine the success of a Cheek Job is to have an independent third party to observe and confirm that the penis is visibly bobbing back and forth in the mouth of the blowjob provider.
Cheek jobs are most prevalent two demographic groups: (1) younger teenagers that are inexperienced with blowjobs (and where the blowjob concerns a large penis); (2) For couples (but most usually men) who want to assess that they are 'actually' receiving a blowjob by monitoring the progress in a mirror, or through home made porn.
When you take an erect penis and give it a hand job, however you flip the direction and stick the man's penis between his legs and rub it against his butt cheeks
"My penis is lonely. I'm fiendin for a cheek job. Rub that shit on my cheek"'
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"