Jimmy says "Hello" in a specific way I remember being a reference to a comedy movie before 1990, but I can't remember which one.
I remember doing the voice with my friends after watching it on VHS, thinking it was hilarious, now I'm old and can't remember what movie it was. I think maybe it was a quick scene where two guys said Hi then one said "Hellooo"
Is it Clue? I know it's from something, this is not the Mandela Effect. Pretty sure it was from Clue. And yes I'm high.
EDIT: I SLEPT ON IT AND NOW BELIEVE IT TO BE BILLY CRYSTAL'S NORMAN THE COW VOICE FROM CITY SLICKERS. THANK YOU.