Doonesbury by Garry Trudeau for December 12, 1970
Transcript:
Mike: (Geez, how am I going to get rid of this loser date of mine? I guess I'll have to try the ol' couch trick...) O.K., listen up! I couldn't get a hotel room, so you'll have to sleep on the couch! Girlfriend: Oh, grr, you groovy tiger...I'll do it. Mike: (So much for the ol' couch trick...)