Proscenium Cream 

The rush of adrenaline and or endorphines from performing a show on stage

"Oh how i long for that Proscenium Cream"

"4 months of work just for that sweet sweet bit of proscenium cream"

Proscenium Cream by Thicc lord 4000 August 18, 2023

proscenium thrust 

A sex move describing vigorous humping during a live action play on stage.

Kid 1: "I had to go to a play for my intro to theatre class last night and it was so awkward."
Kid 2: "Why is that?"
Kid 1: "The main actor spent the whole play giving all the ladies the proscenium thrust!"

proscenium thrust by Yolocity October 29, 2015

proscenium arch 

proscenium arch theatre is a type of staging where the audience watch the performance like a stage

is that a proscenium arch theatre stage

proscenium arch by ok4728828 January 18, 2019