A term used for video game bosses with incredibly easy exploits or weaknesses. Comes from a boss in MegaMan X named Spark Mandrill whose weakness, Ice Shotgun, freezes him and prevents him from attacking while also dealing heavy damage to him.
This is the sexual act in which the girl/guy giving you a handjob rubs too hard in turn giving you a red, raw dick. Along with the raw dick comes the inability to get off which also gives you blue balls. The combination of the two makes something terrible/nightmarish and also is similar to the face of a Mandrill monkey.
Brah, that bitch gave me a rawjob and I couldn't get off. I never thought it would happen to me, but, yes, I did receive a Mandrill.