death by cake

When a woman straddles and rides a man's face until she either reaches climax, or the man dies of exhaustion, suffocation, etc.

Dude 1: Man, Lexi tried to give me the Death By Cake last night, but my face skills are on point.
Dude 2: Nice save man.

Death cake

Cake that is served at a funeral, wake or luncheon after a funeral.

Rest in peace Uncle Bill. Let's grab a sandwich and death cake.