Explain SMBC — the wiki for Saturday Morning Breakfast Cereal

This single-panel comic depicts a couple in bed. The woman cheerfully tells the man, "I got some tips from your mother." The man looks visibly horrified and uncomfortable. Below the panel, the caption reads: "Theory proved: Erections can be destroyed with sound waves."

The humor is straightforward: the woman's comment is almost certainly innocent -- she likely got cooking tips, household advice, or some other mundane guidance from her partner's mother. However, given the intimate bedroom context, the man's mind immediately jumps to the worst possible interpretation, creating an instant mood killer. The mere mention of one's mother in an intimate setting is the joke's engine.

The caption below reframes the situation in pseudo-scientific language, treating the man's reaction as empirical evidence for a humorous hypothesis about "sound waves" (i.e., certain words) being able to destroy arousal. The votey panel takes this scientific framing even further, showing a scientist in a lab coat presenting a chart and proudly declaring she calls the phenomenon "wang exsanguination" -- a mock-clinical term meaning the draining of blood from the penis. This escalation from bedroom comedy to fake academic research is classic SMBC humor, treating an absurd premise with exaggerated scholarly seriousness.