"Full House" Dad Bob Saget Dishes on His Raunchy Stand-Up Alter Ego (Which Rach LOVES!)

You may know him as that sweetheart of a single dad on "Full House," but Rach NEEDS you to know — Bob Saget is a different man when he hits the stand-up stage!

And in fact, that's how he started out!

"I was on a show called 'The Morning Show' at CBS, and then I got fired, because I was too 'raw' for morning television," Bob begins with a laugh. "I wasn't doing too much bad! [But] I won't tell you what I did."

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But when it came time to cast "Full House," Bob said the showrunners came to him first, because they liked him as the warmup comic on the '80s comedy series "Bosom Buddies" — the show that launched Tom Hanks' career!

"They put me on the show once, and Tom Hanks gave me a name: 'Bob the Comic, ladies and gentlemen!'" shares Bob, doing a perfect Tom impression. "I love him. Who doesn't?"

He adds, "Stand-up was something I always did — even during Full House — and it was a job. And it was a good job!"

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So, yes, the raunchy Bob you (and Rach!) love to listen to on Howard Stern? That's the real Bob, ladies and gentlemen!

Still, that doesn't mean that Bob hasn't absolutely loved reuniting with his squeaky-clean "Full House" family.

"It's like 'Star Trek,' we walked back onto the Enterprise," jokes Bob, "and Jesse is Captain Kirk. And I'm, I don't know, I guess Spock!"

And we couldn't be happier about it!

For more from Bob, watch the video above! And make sure to check out Bob's new comedy special, "Bob Saget: Zero to Sixty," which is already available to rent on Amazon and iTunes.