Peanuts by Charles Schulz for December 21, 1959
Transcript:
Linus and Lucy are in the living-room. She exclaims, "You and your letters to Santa Claus!"<br> <br> She continues, "You think you can get me in bad with him, but you can't! Santa is very forgiving with little girls!" Linus replies, "Oh, Yeah?"<br> <br> Lucy responds, "Yeah! Little girls can get away with a lot more than little boys!" Linus asks, "What makes you think so?"<br> <br> Lucy smiles as Linus grimaces. She says, "Because we're so cute!"<br> <br>
The reference might have been a little dated by the time this strip came out: “a cobra with an Ipana smile!”