Sen, I'm going to give it to you - because the line was used by both Bugs Bunny
and by Daffy Duck in more than one cartoon short done for the movie theaters in the 1940's and early '50's.
It may have been used in
Space Jam, I don't know - because it was one of those "signature" lines I rather suspect so. I do know it was used in
"The Bugs Bunny-Road Runner Movie" of some years ago (which was basically a compilation of several of the classic shorts).
I know, I cheated just a touch.

You go!
I am
Dawg
P.S. - Have you tried the avatar again lately? If not, do so - and if it doesn't work let me know.