And Mavis, if she saw you, she would know that I lied. No!

7 seconds sound clip from the Hotel Transylvania movie soundboard.

You can hear this line at 00:22:18 in the Blu-ray version of the movie.

Quote context

[...]

- What? It's a good jam. Don't be a grandpa.

- You need to go. No human has ever entered this castle. And if someone should see you, the safety of the hotel, the sanctuary, no one would ever come again.

- Yeah, go for it.

- Ever come again!

- I love your Dracula voice. It's so over the top.

- And Mavis, if she saw you, she would know that I lied. No!

- Who's Mavis? Is this her room?

- I'm good with a roommate. I had six brothers growing up, so could totally share.

- I can't kill him. It would set monsters back hundreds of years.

- One time, in Hamburg, I roomed with this dude who I caught stealing my shampoo. I said, Whoa, man, and he threw a flower pot at me, but he was cool.

[...]