I remember seeing a clip from a B-movie from the 70's or early 80's where a lady was at a party sitting on the floor and a guy walked by with a sheet cake and dropped it on her. It was very quick, but the coverage was incredible. Does anyone else remember this or know where to find it?
I believe you might be thinking of "Raw Force" from 1982. There's a party scene where an inebriated guy stumbles around and drops a sheet cake on a girl.
It was indeed great coverage, but the angle and aftermath are very poor. I think the entire purpose of the scene was just to show the girl in the shower a few minutes later (by that point totally clean).
The full movie used to be up on YT, but seems to have been taken down at some point.
Linking to this b/c it's better quality than a short standalone clip of the party scene on YT that also doesn't include any before shots. I believe there was a clean shot of the woman sometime before the hit that isn't included in the clips