In other words, songs that were played on the radio intact, despite highly “offensive” lines. For example, the AOR station I listened to in the 70’s always played the album version of the Jefferson Starship song “Miracles” intact, complete with the line “I got a taste of the real world/When I went down on you girl”- I didn’t know it was dirty at the time, though.
One that did not get passed the censors is funny, so I’m told- I don’t remember it. Supposedly some stations changed the line in Jethro Tull’s “Locomotive Breath” from “got him by the balls” to “got him by the fun” for airplay.