I wave my private parts at your aunties.

— Sir Lancelot (John Cleese)

4 seconds sound clip from the Monty Python and the Holy Grail movie soundboard.

You can hear this line at 01:25:23 in the Blu-ray version of the movie.

Quote context

[...]

- So, we French fellows outwit you a second time.

- How dare you profane this place with your presence?

- I command you, in the name of the knights of Camelot, to open the doors of this sacred castle, to which God himself has guided us.

- How you English say? One more time, I unclog my nose in your direction, sons of a window-dresser!

- So, you think you could out-clever us French folk with your silly knees-bent, running about, advancing behaviour.

- I wave my private parts at your aunties.

- You cheesy lot of second-hand, electric donkey-bottom biters!

- In the name of the Lord, we demand entrance to this sacred castle!

- No chance, English bed-wetting types.

- I burst my pimples at you, and call your door-opening request a silly thing!

[...]