A rare and exciting variation of Fellatio in which the administer screams as loud as possible while doing the deed. This creates an extra vibration sensation for the receiver. Frequently referred to as a "Screamer"
"BLARP BLARP BLARP BLARP"
Tracy: What the hell is that noise?
Ted: Oh, thats just Judy giving Chris a nice and loud Screamjob.
The act of screaming while giving a blowjob, resulting in a muffled screaming sound.
"Man, I got the best screamjob last night."