Not sure if TER will give any VIP credit, but as it is Christmas Eve and all, I'll gift 5 days of my VIP to the wiener.

1970s:

Here's a lyric; name the song and for extra credit the movie it came from:

"Gonzo, the lead guitarist, placed his mutated member in her slithering slit."

Hint:  Though from a song, the line is spoken.

Frank Zappa, Penis dimension?

Here's the clip:

Can I play?