Phenomonon in which after masturbating, the inside of the penis burns/irritates inexplicably for an indeffinite amount of time. Not an STD.
I can't keep jacking off before bed, acid dick is keeping me up.
The residual effect of putting your regular dick into an Acid Pussy. See Acid Pussy.
"My brother is a whore, and fucks whores with acid pussy, and now his dick is on fire...because it is now acid dick."