Cheek Juice
The icky build up of greasy man oil that is left on cell phone after talking for an extended period of time.
"ah man you got cheek juice all over my phone"
cheek-juice
the residue left on the screen of your phone after you have just used it for a phone call.
Phil: Hey dude can i borrow your phone for a sec?
Jim: Yeah bro go for it.
Phil: Geez, there is a bunch of cheek-juice on it. (frowns in disgust)
Jim: Yeah bro go for it.
Phil: Geez, there is a bunch of cheek-juice on it. (frowns in disgust)