"Schoolboy Blues" is a 1970 song by The Rolling Stones, commonly recognised by the name "Cocksucker Blues". It was written by Mick Jagger to be the Stones' final single for Decca Records as per their contract. The song is a parody of Dr. John's "The Lonesome Guitar Strangler", released on his 1969 album Babylon, however its context and language were chosen specifically to anger Decca executives and there are references to fellatio and anal sex in the lyrics. The track was refused by Decca, although promotional 12" singles of it were pressed in the United States.
The song was only officially released later by Decca in West Germany in 1983, where it accompanied a four-LP compilation, entitled The Rest of the Best, as a bonus single. That version was withdrawn and the boxed set was re-released without the single. Bootleg singles of the song have been issued.