As seen in this thread of the mistletoe meme, Ford and Zaphod had just absconded with the mistletoe itself and were headed off to find a convent to hang it in, certain that the plant released some sort of chemical that made humans kiss each other.
And, as a helpful prompt for Zaphod, here is Ford's last reply:
Of course Ford had to have one [egg nog] right away. He glanced around until he spotted a big bowl of it and sauntered over to get some. Then again, he and Zaphod were headed out. He grabbed two. For himself. Zaphod had more than enough hands and heads to get more of his own if he wanted it.
"I'm ready!" Ford declared. "Let's go!" He was also not particularly concerned that they still didn't know where they were going.
And, as a helpful prompt for Zaphod, here is Ford's last reply:
Of course Ford had to have one [egg nog] right away. He glanced around until he spotted a big bowl of it and sauntered over to get some. Then again, he and Zaphod were headed out. He grabbed two. For himself. Zaphod had more than enough hands and heads to get more of his own if he wanted it.
"I'm ready!" Ford declared. "Let's go!" He was also not particularly concerned that they still didn't know where they were going.