When a person giving a blow job bites down on the receiver's penis. After clamping down, the biter may or may not let go until the penis is hanging by a thread or even completely detached.
Holy shit! I came as soon as I heard. Are you ok?
No I'm not fucking ok! I'm in the fucking hospital with a sewn-on dick! I was receiving the best blow job of my life last night when the bitch gave me the jaws of life! AHHHH!