The yellowish colored discharge from your anus that usually occurs on a hot summer day after taking a shit. Associated with monkey butt. May be a symptom of improper wiping or chaffing or just a generally uncleanly rectum. Best described as a mixture of ass sweat and fecal debris.
"This anal venom is burnin' me up. I'd better go lay down with a fan blowing on my ass to dry it out."