Oh, yes. He is.
3 seconds sound clip from the Uncle Buck (1989) movie soundboard.
You can hear this line at 01:26:01 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, my God! What did you do?
- You shithead! I could have suffocated in here!
- I'm sorry! I'm sorry! Okay, asshole? I'm sorry!
- I don't know if I told you this or not, but I'm an amateur dentist.
- Yeah? It was halfhearted. We'll let him. Come on, here we go.
[...]