Liquid ASS
From OAPedia.com
Liquid ASS is a novelty product that produces a shit-like odor wherever it's sprayed, causing people to become sick and want to leave the room. Opie and Anthony have used this product a number of times for radio bits, including spraying intern David and sending him out to get coffee, and putting a drop of the stuff on E-Rock's tongue for his disgusted reaction.
Ironically, the product had no effect on Bob Kelly, who pukes at anything disgusting.