"The Daily Show's" Rob Corddry told the Twittersphere that it is "the best thing ever." Kristen Bell, star of "Forgetting Sarah Marshall," recommended that her followers read it, "unless you're allergic to laughing hysterically."
Halpern said he waited about a month to tell his dad, a retired doctor who grew up on a Kentucky farm, that he had thousands of fans on the Internet -- and in Hollywood.
"I really just put these online just to keep a record of them," Halpern said, adding that, as an "angsty kid" he used to keep journals of his dad's more infuriating comments.
As he grew older, Halpern entertained friends by posting his dad's juiciest gems on his Google chat status. Soon after he moved in with his parents earlier this summer, a friend suggested he preserve them on Twitter.
So he started choosing one winner a day to post online.
"I honestly didn't think anyone but the five people I sent it to who knew my dad would find it funny," he said. But he woke up one day to find 40,000 new followers. And then 100,000. And then 200,000. And the numbers kept climbing.
"It's super weird. It's cool," he said. "I was not expecting any of that."
When he told his father about the book, Halperin says his dad had two stipulations: No interviews and no money.
"'I don't want any money. I have my own,'" Halperin recalled his dad's reaction.